Home / 131,480.53-181,459.11-74,130.90

Finding the Fourth Proportional to 131,480.53, 181,459.11 and 74,130.90

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Solution

The fourth proportional to 131,480.53, 181,459.11 and 74,130.90 is: 102,309.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,480.53 : 181,459.11 = 74,130.90 : x
  2. Step 2: Convert to fraction form
    131,480.53/181,459.11 = 74,130.90/x
  3. Step 3: Cross multiply
    131,480.53x = 181,459.11 × 74,130.90
  4. Step 4: Simplify right side
    131,480.53x = 13,451,726,526.53
  5. Step 5: Solve for x
    x = 13,451,726,526.53/131,480.53
  6. Step 6: Final answer
    x = 102,309.65

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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.