Home / 104,864.70-156,951.45-81,363.90

Finding the Fourth Proportional to 104,864.70, 156,951.45 and 81,363.90

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Solution

The fourth proportional to 104,864.70, 156,951.45 and 81,363.90 is: 121,777.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,864.70 : 156,951.45 = 81,363.90 : x
  2. Step 2: Convert to fraction form
    104,864.70/156,951.45 = 81,363.90/x
  3. Step 3: Cross multiply
    104,864.70x = 156,951.45 × 81,363.90
  4. Step 4: Simplify right side
    104,864.70x = 12,770,182,082.66
  5. Step 5: Solve for x
    x = 12,770,182,082.66/104,864.70
  6. Step 6: Final answer
    x = 121,777.70

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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.