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Finding the Fourth Proportional to 129,949.92, 179,320.88 and 73,366.88

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Solution

The fourth proportional to 129,949.92, 179,320.88 and 73,366.88 is: 101,240.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,949.92 : 179,320.88 = 73,366.88 : x
  2. Step 2: Convert to fraction form
    129,949.92/179,320.88 = 73,366.88/x
  3. Step 3: Cross multiply
    129,949.92x = 179,320.88 × 73,366.88
  4. Step 4: Simplify right side
    129,949.92x = 13,156,213,484.45
  5. Step 5: Solve for x
    x = 13,156,213,484.45/129,949.92
  6. Step 6: Final answer
    x = 101,240.64

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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.