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Finding the Fourth Proportional to 108,580.16, 162,815.20 and 38,449.60

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Solution

The fourth proportional to 108,580.16, 162,815.20 and 38,449.60 is: 57,654.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,580.16 : 162,815.20 = 38,449.60 : x
  2. Step 2: Convert to fraction form
    108,580.16/162,815.20 = 38,449.60/x
  3. Step 3: Cross multiply
    108,580.16x = 162,815.20 × 38,449.60
  4. Step 4: Simplify right side
    108,580.16x = 6,260,179,313.92
  5. Step 5: Solve for x
    x = 6,260,179,313.92/108,580.16
  6. Step 6: Final answer
    x = 57,654.91

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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.