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Finding the Fourth Proportional to 115,127.98, 158,832.92 and 69,789.42

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Solution

The fourth proportional to 115,127.98, 158,832.92 and 69,789.42 is: 96,282.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,127.98 : 158,832.92 = 69,789.42 : x
  2. Step 2: Convert to fraction form
    115,127.98/158,832.92 = 69,789.42/x
  3. Step 3: Cross multiply
    115,127.98x = 158,832.92 × 69,789.42
  4. Step 4: Simplify right side
    115,127.98x = 11,084,857,363.71
  5. Step 5: Solve for x
    x = 11,084,857,363.71/115,127.98
  6. Step 6: Final answer
    x = 96,282.91

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1.5x scale

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.