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Finding the Fourth Proportional to 115,265.52, 159,067.12 and 64,281.48

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Solution

The fourth proportional to 115,265.52, 159,067.12 and 64,281.48 is: 88,708.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,265.52 : 159,067.12 = 64,281.48 : x
  2. Step 2: Convert to fraction form
    115,265.52/159,067.12 = 64,281.48/x
  3. Step 3: Cross multiply
    115,265.52x = 159,067.12 × 64,281.48
  4. Step 4: Simplify right side
    115,265.52x = 10,225,069,571.53
  5. Step 5: Solve for x
    x = 10,225,069,571.53/115,265.52
  6. Step 6: Final answer
    x = 88,708.83

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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.