Home / 129,733.92-179,011.44-73,144.08

Finding the Fourth Proportional to 129,733.92, 179,011.44 and 73,144.08

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Solution

The fourth proportional to 129,733.92, 179,011.44 and 73,144.08 is: 100,926.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,733.92 : 179,011.44 = 73,144.08 : x
  2. Step 2: Convert to fraction form
    129,733.92/179,011.44 = 73,144.08/x
  3. Step 3: Cross multiply
    129,733.92x = 179,011.44 × 73,144.08
  4. Step 4: Simplify right side
    129,733.92x = 13,093,627,088.28
  5. Step 5: Solve for x
    x = 13,093,627,088.28/129,733.92
  6. Step 6: Final answer
    x = 100,926.78

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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.