Home / 115,505.28-159,397.26-65,204.28

Finding the Fourth Proportional to 115,505.28, 159,397.26 and 65,204.28

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Solution

The fourth proportional to 115,505.28, 159,397.26 and 65,204.28 is: 89,981.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,505.28 : 159,397.26 = 65,204.28 : x
  2. Step 2: Convert to fraction form
    115,505.28/159,397.26 = 65,204.28/x
  3. Step 3: Cross multiply
    115,505.28x = 159,397.26 × 65,204.28
  4. Step 4: Simplify right side
    115,505.28x = 10,393,383,572.27
  5. Step 5: Solve for x
    x = 10,393,383,572.27/115,505.28
  6. Step 6: Final answer
    x = 89,981.89

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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.