Home / 119,737.68-165,234.82-66,021.78

Finding the Fourth Proportional to 119,737.68, 165,234.82 and 66,021.78

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Solution

The fourth proportional to 119,737.68, 165,234.82 and 66,021.78 is: 91,108.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,737.68 : 165,234.82 = 66,021.78 : x
  2. Step 2: Convert to fraction form
    119,737.68/165,234.82 = 66,021.78/x
  3. Step 3: Cross multiply
    119,737.68x = 165,234.82 × 66,021.78
  4. Step 4: Simplify right side
    119,737.68x = 10,909,096,934.38
  5. Step 5: Solve for x
    x = 10,909,096,934.38/119,737.68
  6. Step 6: Final answer
    x = 91,108.30

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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.