Home / 187,780-259,136.40-108,292

Finding the Fourth Proportional to 187,780, 259,136.40 and 108,292

Calculator

Solution

The fourth proportional to 187,780, 259,136.40 and 108,292 is: 149,442.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,780 : 259,136.40 = 108,292 : x
  2. Step 2: Convert to fraction form
    187,780/259,136.40 = 108,292/x
  3. Step 3: Cross multiply
    187,780x = 259,136.40 × 108,292
  4. Step 4: Simplify right side
    187,780x = 28,062,399,028.80
  5. Step 5: Solve for x
    x = 28,062,399,028.80/187,780
  6. Step 6: Final answer
    x = 149,442.96

Related Problems

Find fourth proportional to 93,890, 129,568.20 and 54,146
Half scale
Find fourth proportional to 375,560, 518,272.80 and 216,584
Double scale
Find fourth proportional to 187,781, 259,137.78 and 108,293
Similar ratio
Find fourth proportional to 281,670, 388,704.60 and 162,438
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.