Home / 129,552.92-193,890.46-79,664.61

Finding the Fourth Proportional to 129,552.92, 193,890.46 and 79,664.61

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Solution

The fourth proportional to 129,552.92, 193,890.46 and 79,664.61 is: 119,227.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,552.92 : 193,890.46 = 79,664.61 : x
  2. Step 2: Convert to fraction form
    129,552.92/193,890.46 = 79,664.61/x
  3. Step 3: Cross multiply
    129,552.92x = 193,890.46 × 79,664.61
  4. Step 4: Simplify right side
    129,552.92x = 15,446,208,555.92
  5. Step 5: Solve for x
    x = 15,446,208,555.92/129,552.92
  6. Step 6: Final answer
    x = 119,227.02

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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.