Home / 115,493.04-159,379.92-65,190.96

Finding the Fourth Proportional to 115,493.04, 159,379.92 and 65,190.96

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Solution

The fourth proportional to 115,493.04, 159,379.92 and 65,190.96 is: 89,963.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,493.04 : 159,379.92 = 65,190.96 : x
  2. Step 2: Convert to fraction form
    115,493.04/159,379.92 = 65,190.96/x
  3. Step 3: Cross multiply
    115,493.04x = 159,379.92 × 65,190.96
  4. Step 4: Simplify right side
    115,493.04x = 10,390,129,989.52
  5. Step 5: Solve for x
    x = 10,390,129,989.52/115,493.04
  6. Step 6: Final answer
    x = 89,963.26

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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.