Home / 187,111.92-280,478.72-80,565.36

Finding the Fourth Proportional to 187,111.92, 280,478.72 and 80,565.36

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Solution

The fourth proportional to 187,111.92, 280,478.72 and 80,565.36 is: 120,766.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,111.92 : 280,478.72 = 80,565.36 : x
  2. Step 2: Convert to fraction form
    187,111.92/280,478.72 = 80,565.36/x
  3. Step 3: Cross multiply
    187,111.92x = 280,478.72 × 80,565.36
  4. Step 4: Simplify right side
    187,111.92x = 22,596,869,049.14
  5. Step 5: Solve for x
    x = 22,596,869,049.14/187,111.92
  6. Step 6: Final answer
    x = 120,766.59

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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.