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Finding the Fourth Proportional to 108,612.10, 162,918.15 and 38,482.30

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Solution

The fourth proportional to 108,612.10, 162,918.15 and 38,482.30 is: 57,723.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,612.10 : 162,918.15 = 38,482.30 : x
  2. Step 2: Convert to fraction form
    108,612.10/162,918.15 = 38,482.30/x
  3. Step 3: Cross multiply
    108,612.10x = 162,918.15 × 38,482.30
  4. Step 4: Simplify right side
    108,612.10x = 6,269,465,123.75
  5. Step 5: Solve for x
    x = 6,269,465,123.75/108,612.10
  6. Step 6: Final answer
    x = 57,723.45

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Similar ratio
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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.