Home / 109,438.11-151,149.15-73,565.91

Finding the Fourth Proportional to 109,438.11, 151,149.15 and 73,565.91

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Solution

The fourth proportional to 109,438.11, 151,149.15 and 73,565.91 is: 101,604.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,438.11 : 151,149.15 = 73,565.91 : x
  2. Step 2: Convert to fraction form
    109,438.11/151,149.15 = 73,565.91/x
  3. Step 3: Cross multiply
    109,438.11x = 151,149.15 × 73,565.91
  4. Step 4: Simplify right side
    109,438.11x = 11,119,424,765.48
  5. Step 5: Solve for x
    x = 11,119,424,765.48/109,438.11
  6. Step 6: Final answer
    x = 101,604.69

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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.