Home / 129,937.92-179,302.44-76,213.05

Finding the Fourth Proportional to 129,937.92, 179,302.44 and 76,213.05

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Solution

The fourth proportional to 129,937.92, 179,302.44 and 76,213.05 is: 105,167.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,937.92 : 179,302.44 = 76,213.05 : x
  2. Step 2: Convert to fraction form
    129,937.92/179,302.44 = 76,213.05/x
  3. Step 3: Cross multiply
    129,937.92x = 179,302.44 × 76,213.05
  4. Step 4: Simplify right side
    129,937.92x = 13,665,185,824.84
  5. Step 5: Solve for x
    x = 13,665,185,824.84/129,937.92
  6. Step 6: Final answer
    x = 105,167.04

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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.