Home / 115,422.28-159,282.90-65,125.96

Finding the Fourth Proportional to 115,422.28, 159,282.90 and 65,125.96

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Solution

The fourth proportional to 115,422.28, 159,282.90 and 65,125.96 is: 89,873.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,422.28 : 159,282.90 = 65,125.96 : x
  2. Step 2: Convert to fraction form
    115,422.28/159,282.90 = 65,125.96/x
  3. Step 3: Cross multiply
    115,422.28x = 159,282.90 × 65,125.96
  4. Step 4: Simplify right side
    115,422.28x = 10,373,451,774.08
  5. Step 5: Solve for x
    x = 10,373,451,774.08/115,422.28
  6. Step 6: Final answer
    x = 89,873.91

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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.