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Finding the Fourth Proportional to 159,658.30, 220,330 and 88,040.86

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Solution

The fourth proportional to 159,658.30, 220,330 and 88,040.86 is: 121,497.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,658.30 : 220,330 = 88,040.86 : x
  2. Step 2: Convert to fraction form
    159,658.30/220,330 = 88,040.86/x
  3. Step 3: Cross multiply
    159,658.30x = 220,330 × 88,040.86
  4. Step 4: Simplify right side
    159,658.30x = 19,398,042,683.80
  5. Step 5: Solve for x
    x = 19,398,042,683.80/159,658.30
  6. Step 6: Final answer
    x = 121,497.24

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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.