Home / 129,713.72-178,991.82-95,740.76

Finding the Fourth Proportional to 129,713.72, 178,991.82 and 95,740.76

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Solution

The fourth proportional to 129,713.72, 178,991.82 and 95,740.76 is: 132,112.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,713.72 : 178,991.82 = 95,740.76 : x
  2. Step 2: Convert to fraction form
    129,713.72/178,991.82 = 95,740.76/x
  3. Step 3: Cross multiply
    129,713.72x = 178,991.82 × 95,740.76
  4. Step 4: Simplify right side
    129,713.72x = 17,136,812,880.58
  5. Step 5: Solve for x
    x = 17,136,812,880.58/129,713.72
  6. Step 6: Final answer
    x = 132,112.57

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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.