Home / 129,377.28-194,004.48-45,127.22

Finding the Fourth Proportional to 129,377.28, 194,004.48 and 45,127.22

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Solution

The fourth proportional to 129,377.28, 194,004.48 and 45,127.22 is: 67,669.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,377.28 : 194,004.48 = 45,127.22 : x
  2. Step 2: Convert to fraction form
    129,377.28/194,004.48 = 45,127.22/x
  3. Step 3: Cross multiply
    129,377.28x = 194,004.48 × 45,127.22
  4. Step 4: Simplify right side
    129,377.28x = 8,754,882,849.95
  5. Step 5: Solve for x
    x = 8,754,882,849.95/129,377.28
  6. Step 6: Final answer
    x = 67,669.40

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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.