Home / 113,487.08-169,815.90-66,761.96

Finding the Fourth Proportional to 113,487.08, 169,815.90 and 66,761.96

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Solution

The fourth proportional to 113,487.08, 169,815.90 and 66,761.96 is: 99,898.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,487.08 : 169,815.90 = 66,761.96 : x
  2. Step 2: Convert to fraction form
    113,487.08/169,815.90 = 66,761.96/x
  3. Step 3: Cross multiply
    113,487.08x = 169,815.90 × 66,761.96
  4. Step 4: Simplify right side
    113,487.08x = 11,337,242,323.16
  5. Step 5: Solve for x
    x = 11,337,242,323.16/113,487.08
  6. Step 6: Final answer
    x = 99,898.97

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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.