Home / 129,543.09-194,370.92-45,363.63

Finding the Fourth Proportional to 129,543.09, 194,370.92 and 45,363.63

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Solution

The fourth proportional to 129,543.09, 194,370.92 and 45,363.63 is: 68,065.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,543.09 : 194,370.92 = 45,363.63 : x
  2. Step 2: Convert to fraction form
    129,543.09/194,370.92 = 45,363.63/x
  3. Step 3: Cross multiply
    129,543.09x = 194,370.92 × 45,363.63
  4. Step 4: Simplify right side
    129,543.09x = 8,817,370,497.64
  5. Step 5: Solve for x
    x = 8,817,370,497.64/129,543.09
  6. Step 6: Final answer
    x = 68,065.15

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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.