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Finding the Fourth Proportional to 108,801.12, 163,218.12 and 38,663.76

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Solution

The fourth proportional to 108,801.12, 163,218.12 and 38,663.76 is: 58,001.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,801.12 : 163,218.12 = 38,663.76 : x
  2. Step 2: Convert to fraction form
    108,801.12/163,218.12 = 38,663.76/x
  3. Step 3: Cross multiply
    108,801.12x = 163,218.12 × 38,663.76
  4. Step 4: Simplify right side
    108,801.12x = 6,310,626,219.33
  5. Step 5: Solve for x
    x = 6,310,626,219.33/108,801.12
  6. Step 6: Final answer
    x = 58,001.48

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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.