Home / 129,595.97-178,844.24-72,233.71

Finding the Fourth Proportional to 129,595.97, 178,844.24 and 72,233.71

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Solution

The fourth proportional to 129,595.97, 178,844.24 and 72,233.71 is: 99,683.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,595.97 : 178,844.24 = 72,233.71 : x
  2. Step 2: Convert to fraction form
    129,595.97/178,844.24 = 72,233.71/x
  3. Step 3: Cross multiply
    129,595.97x = 178,844.24 × 72,233.71
  4. Step 4: Simplify right side
    129,595.97x = 12,918,582,700.80
  5. Step 5: Solve for x
    x = 12,918,582,700.80/129,595.97
  6. Step 6: Final answer
    x = 99,683.52

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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.