Home / 148,890.42-205,489.31-91,565.91

Finding the Fourth Proportional to 148,890.42, 205,489.31 and 91,565.91

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Solution

The fourth proportional to 148,890.42, 205,489.31 and 91,565.91 is: 126,373.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,890.42 : 205,489.31 = 91,565.91 : x
  2. Step 2: Convert to fraction form
    148,890.42/205,489.31 = 91,565.91/x
  3. Step 3: Cross multiply
    148,890.42x = 205,489.31 × 91,565.91
  4. Step 4: Simplify right side
    148,890.42x = 18,815,815,207.59
  5. Step 5: Solve for x
    x = 18,815,815,207.59/148,890.42
  6. Step 6: Final answer
    x = 126,373.58

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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.