Home / 129,542.45-194,370.11-45,363.08

Finding the Fourth Proportional to 129,542.45, 194,370.11 and 45,363.08

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Solution

The fourth proportional to 129,542.45, 194,370.11 and 45,363.08 is: 68,064.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,542.45 : 194,370.11 = 45,363.08 : x
  2. Step 2: Convert to fraction form
    129,542.45/194,370.11 = 45,363.08/x
  3. Step 3: Cross multiply
    129,542.45x = 194,370.11 × 45,363.08
  4. Step 4: Simplify right side
    129,542.45x = 8,817,226,622.72
  5. Step 5: Solve for x
    x = 8,817,226,622.72/129,542.45
  6. Step 6: Final answer
    x = 68,064.38

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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.