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Finding the Fourth Proportional to 108,902.37, 163,359.69 and 38,781.69

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Solution

The fourth proportional to 108,902.37, 163,359.69 and 38,781.69 is: 58,174.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,902.37 : 163,359.69 = 38,781.69 : x
  2. Step 2: Convert to fraction form
    108,902.37/163,359.69 = 38,781.69/x
  3. Step 3: Cross multiply
    108,902.37x = 163,359.69 × 38,781.69
  4. Step 4: Simplify right side
    108,902.37x = 6,335,364,856.08
  5. Step 5: Solve for x
    x = 6,335,364,856.08/108,902.37
  6. Step 6: Final answer
    x = 58,174.72

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1.5x scale

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.