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Finding the Fourth Proportional to 115,753, 159,740.10 and 62,761

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Solution

The fourth proportional to 115,753, 159,740.10 and 62,761 is: 86,610.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,753 : 159,740.10 = 62,761 : x
  2. Step 2: Convert to fraction form
    115,753/159,740.10 = 62,761/x
  3. Step 3: Cross multiply
    115,753x = 159,740.10 × 62,761
  4. Step 4: Simplify right side
    115,753x = 10,025,448,416.10
  5. Step 5: Solve for x
    x = 10,025,448,416.10/115,753
  6. Step 6: Final answer
    x = 86,610.70

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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.