Home / 129,966.61-179,355.30-76,252.53

Finding the Fourth Proportional to 129,966.61, 179,355.30 and 76,252.53

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Solution

The fourth proportional to 129,966.61, 179,355.30 and 76,252.53 is: 105,229.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,966.61 : 179,355.30 = 76,252.53 : x
  2. Step 2: Convert to fraction form
    129,966.61/179,355.30 = 76,252.53/x
  3. Step 3: Cross multiply
    129,966.61x = 179,355.30 × 76,252.53
  4. Step 4: Simplify right side
    129,966.61x = 13,676,294,841.14
  5. Step 5: Solve for x
    x = 13,676,294,841.14/129,966.61
  6. Step 6: Final answer
    x = 105,229.29

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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.