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Finding the Fourth Proportional to 108,776.38, 163,164.57 and 38,658.46

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Solution

The fourth proportional to 108,776.38, 163,164.57 and 38,658.46 is: 57,987.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,776.38 : 163,164.57 = 38,658.46 : x
  2. Step 2: Convert to fraction form
    108,776.38/163,164.57 = 38,658.46/x
  3. Step 3: Cross multiply
    108,776.38x = 163,164.57 × 38,658.46
  4. Step 4: Simplify right side
    108,776.38x = 6,307,690,186.94
  5. Step 5: Solve for x
    x = 6,307,690,186.94/108,776.38
  6. Step 6: Final answer
    x = 57,987.69

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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.