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Finding the Fourth Proportional to 108,553.91, 149,805.95 and 63,230.72

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Solution

The fourth proportional to 108,553.91, 149,805.95 and 63,230.72 is: 87,259.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,553.91 : 149,805.95 = 63,230.72 : x
  2. Step 2: Convert to fraction form
    108,553.91/149,805.95 = 63,230.72/x
  3. Step 3: Cross multiply
    108,553.91x = 149,805.95 × 63,230.72
  4. Step 4: Simplify right side
    108,553.91x = 9,472,337,013.60
  5. Step 5: Solve for x
    x = 9,472,337,013.60/108,553.91
  6. Step 6: Final answer
    x = 87,259.29

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1.5x scale

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.