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Finding the Fourth Proportional to 163,000.73, 224,937.65 and 90,391.91

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Solution

The fourth proportional to 163,000.73, 224,937.65 and 90,391.91 is: 124,738.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,000.73 : 224,937.65 = 90,391.91 : x
  2. Step 2: Convert to fraction form
    163,000.73/224,937.65 = 90,391.91/x
  3. Step 3: Cross multiply
    163,000.73x = 224,937.65 × 90,391.91
  4. Step 4: Simplify right side
    163,000.73x = 20,332,542,689.72
  5. Step 5: Solve for x
    x = 20,332,542,689.72/163,000.73
  6. Step 6: Final answer
    x = 124,738.97

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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.