Home / 129,948.69-179,331.39-72,593.04

Finding the Fourth Proportional to 129,948.69, 179,331.39 and 72,593.04

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Solution

The fourth proportional to 129,948.69, 179,331.39 and 72,593.04 is: 100,179.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,948.69 : 179,331.39 = 72,593.04 : x
  2. Step 2: Convert to fraction form
    129,948.69/179,331.39 = 72,593.04/x
  3. Step 3: Cross multiply
    129,948.69x = 179,331.39 × 72,593.04
  4. Step 4: Simplify right side
    129,948.69x = 13,018,210,767.53
  5. Step 5: Solve for x
    x = 13,018,210,767.53/129,948.69
  6. Step 6: Final answer
    x = 100,179.62

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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.