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Finding the Fourth Proportional to 115,335.18, 159,162.57 and 65,034.18

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Solution

The fourth proportional to 115,335.18, 159,162.57 and 65,034.18 is: 89,747.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,335.18 : 159,162.57 = 65,034.18 : x
  2. Step 2: Convert to fraction form
    115,335.18/159,162.57 = 65,034.18/x
  3. Step 3: Cross multiply
    115,335.18x = 159,162.57 × 65,034.18
  4. Step 4: Simplify right side
    115,335.18x = 10,351,007,226.64
  5. Step 5: Solve for x
    x = 10,351,007,226.64/115,335.18
  6. Step 6: Final answer
    x = 89,747.18

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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.