Home / 122,457.18-169,025.82-71,481.87

Finding the Fourth Proportional to 122,457.18, 169,025.82 and 71,481.87

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Solution

The fourth proportional to 122,457.18, 169,025.82 and 71,481.87 is: 98,665.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,457.18 : 169,025.82 = 71,481.87 : x
  2. Step 2: Convert to fraction form
    122,457.18/169,025.82 = 71,481.87/x
  3. Step 3: Cross multiply
    122,457.18x = 169,025.82 × 71,481.87
  4. Step 4: Simplify right side
    122,457.18x = 12,082,281,691.88
  5. Step 5: Solve for x
    x = 12,082,281,691.88/122,457.18
  6. Step 6: Final answer
    x = 98,665.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.