Home / 102,188-153,282-28,316

Finding the Fourth Proportional to 102,188, 153,282 and 28,316

Calculator

Solution

The fourth proportional to 102,188, 153,282 and 28,316 is: 42,474

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,188 : 153,282 = 28,316 : x
  2. Step 2: Convert to fraction form
    102,188/153,282 = 28,316/x
  3. Step 3: Cross multiply
    102,188x = 153,282 × 28,316
  4. Step 4: Simplify right side
    102,188x = 4,340,333,112
  5. Step 5: Solve for x
    x = 4,340,333,112/102,188
  6. Step 6: Final answer
    x = 42,474

Related Problems

Find fourth proportional to 51,094, 76,641 and 14,158
Half scale
Find fourth proportional to 204,376, 306,564 and 56,632
Double scale
Find fourth proportional to 102,189, 153,283.50 and 28,317
Similar ratio
Find fourth proportional to 153,282, 229,923 and 42,474
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.