Home / 129,543.40-194,606.70-126,044.20

Finding the Fourth Proportional to 129,543.40, 194,606.70 and 126,044.20

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Solution

The fourth proportional to 129,543.40, 194,606.70 and 126,044.20 is: 189,350.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,543.40 : 194,606.70 = 126,044.20 : x
  2. Step 2: Convert to fraction form
    129,543.40/194,606.70 = 126,044.20/x
  3. Step 3: Cross multiply
    129,543.40x = 194,606.70 × 126,044.20
  4. Step 4: Simplify right side
    129,543.40x = 24,529,045,816.14
  5. Step 5: Solve for x
    x = 24,529,045,816.14/129,543.40
  6. Step 6: Final answer
    x = 189,350.02

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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.