Home / 129,265.66-193,755.12-54,363.61

Finding the Fourth Proportional to 129,265.66, 193,755.12 and 54,363.61

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Solution

The fourth proportional to 129,265.66, 193,755.12 and 54,363.61 is: 81,485.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,265.66 : 193,755.12 = 54,363.61 : x
  2. Step 2: Convert to fraction form
    129,265.66/193,755.12 = 54,363.61/x
  3. Step 3: Cross multiply
    129,265.66x = 193,755.12 × 54,363.61
  4. Step 4: Simplify right side
    129,265.66x = 10,533,227,779.18
  5. Step 5: Solve for x
    x = 10,533,227,779.18/129,265.66
  6. Step 6: Final answer
    x = 81,485.12

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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.