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Finding the Fourth Proportional to 115,251.60, 159,060.84 and 64,272.60

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Solution

The fourth proportional to 115,251.60, 159,060.84 and 64,272.60 is: 88,703.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,251.60 : 159,060.84 = 64,272.60 : x
  2. Step 2: Convert to fraction form
    115,251.60/159,060.84 = 64,272.60/x
  3. Step 3: Cross multiply
    115,251.60x = 159,060.84 × 64,272.60
  4. Step 4: Simplify right side
    115,251.60x = 10,223,253,744.98
  5. Step 5: Solve for x
    x = 10,223,253,744.98/115,251.60
  6. Step 6: Final answer
    x = 88,703.79

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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.