Home / 129,542.84-194,370.55-45,363.38

Finding the Fourth Proportional to 129,542.84, 194,370.55 and 45,363.38

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Solution

The fourth proportional to 129,542.84, 194,370.55 and 45,363.38 is: 68,064.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,542.84 : 194,370.55 = 45,363.38 : x
  2. Step 2: Convert to fraction form
    129,542.84/194,370.55 = 45,363.38/x
  3. Step 3: Cross multiply
    129,542.84x = 194,370.55 × 45,363.38
  4. Step 4: Simplify right side
    129,542.84x = 8,817,305,492.98
  5. Step 5: Solve for x
    x = 8,817,305,492.98/129,542.84
  6. Step 6: Final answer
    x = 68,064.79

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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.