Home / 129,414.61-194,154.15-102,860.80

Finding the Fourth Proportional to 129,414.61, 194,154.15 and 102,860.80

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Solution

The fourth proportional to 129,414.61, 194,154.15 and 102,860.80 is: 154,316.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,414.61 : 194,154.15 = 102,860.80 : x
  2. Step 2: Convert to fraction form
    129,414.61/194,154.15 = 102,860.80/x
  3. Step 3: Cross multiply
    129,414.61x = 194,154.15 × 102,860.80
  4. Step 4: Simplify right side
    129,414.61x = 19,970,851,192.32
  5. Step 5: Solve for x
    x = 19,970,851,192.32/129,414.61
  6. Step 6: Final answer
    x = 154,316.82

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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.