Home / 129,377.82-194,005.26-45,127.76

Finding the Fourth Proportional to 129,377.82, 194,005.26 and 45,127.76

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Solution

The fourth proportional to 129,377.82, 194,005.26 and 45,127.76 is: 67,670.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,377.82 : 194,005.26 = 45,127.76 : x
  2. Step 2: Convert to fraction form
    129,377.82/194,005.26 = 45,127.76/x
  3. Step 3: Cross multiply
    129,377.82x = 194,005.26 × 45,127.76
  4. Step 4: Simplify right side
    129,377.82x = 8,755,022,812.02
  5. Step 5: Solve for x
    x = 8,755,022,812.02/129,377.82
  6. Step 6: Final answer
    x = 67,670.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.