Home / 108,586.31-162,765.78-45,442.61

Finding the Fourth Proportional to 108,586.31, 162,765.78 and 45,442.61

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Solution

The fourth proportional to 108,586.31, 162,765.78 and 45,442.61 is: 68,116.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,586.31 : 162,765.78 = 45,442.61 : x
  2. Step 2: Convert to fraction form
    108,586.31/162,765.78 = 45,442.61/x
  3. Step 3: Cross multiply
    108,586.31x = 162,765.78 × 45,442.61
  4. Step 4: Simplify right side
    108,586.31x = 7,396,501,861.89
  5. Step 5: Solve for x
    x = 7,396,501,861.89/108,586.31
  6. Step 6: Final answer
    x = 68,116.34

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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.