Home / 122,681.76-183,967.98-85,480.90

Finding the Fourth Proportional to 122,681.76, 183,967.98 and 85,480.90

Calculator

Solution

The fourth proportional to 122,681.76, 183,967.98 and 85,480.90 is: 128,183.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,681.76 : 183,967.98 = 85,480.90 : x
  2. Step 2: Convert to fraction form
    122,681.76/183,967.98 = 85,480.90/x
  3. Step 3: Cross multiply
    122,681.76x = 183,967.98 × 85,480.90
  4. Step 4: Simplify right side
    122,681.76x = 15,725,748,501.58
  5. Step 5: Solve for x
    x = 15,725,748,501.58/122,681.76
  6. Step 6: Final answer
    x = 128,183.26

Related Problems

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.