Home / 129,747.76-194,552.40-66,542.23

Finding the Fourth Proportional to 129,747.76, 194,552.40 and 66,542.23

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Solution

The fourth proportional to 129,747.76, 194,552.40 and 66,542.23 is: 99,777.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,747.76 : 194,552.40 = 66,542.23 : x
  2. Step 2: Convert to fraction form
    129,747.76/194,552.40 = 66,542.23/x
  3. Step 3: Cross multiply
    129,747.76x = 194,552.40 × 66,542.23
  4. Step 4: Simplify right side
    129,747.76x = 12,945,950,547.85
  5. Step 5: Solve for x
    x = 12,945,950,547.85/129,747.76
  6. Step 6: Final answer
    x = 99,777.83

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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.