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Finding the Fourth Proportional to 129,832.32, 179,168.64 and 73,255.68

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Solution

The fourth proportional to 129,832.32, 179,168.64 and 73,255.68 is: 101,092.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,832.32 : 179,168.64 = 73,255.68 : x
  2. Step 2: Convert to fraction form
    129,832.32/179,168.64 = 73,255.68/x
  3. Step 3: Cross multiply
    129,832.32x = 179,168.64 × 73,255.68
  4. Step 4: Simplify right side
    129,832.32x = 13,125,120,557.88
  5. Step 5: Solve for x
    x = 13,125,120,557.88/129,832.32
  6. Step 6: Final answer
    x = 101,092.86

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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.