Home / 129,865.03-194,649.90-54,938.41

Finding the Fourth Proportional to 129,865.03, 194,649.90 and 54,938.41

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Solution

The fourth proportional to 129,865.03, 194,649.90 and 54,938.41 is: 82,345.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,865.03 : 194,649.90 = 54,938.41 : x
  2. Step 2: Convert to fraction form
    129,865.03/194,649.90 = 54,938.41/x
  3. Step 3: Cross multiply
    129,865.03x = 194,649.90 × 54,938.41
  4. Step 4: Simplify right side
    129,865.03x = 10,693,756,012.66
  5. Step 5: Solve for x
    x = 10,693,756,012.66/129,865.03
  6. Step 6: Final answer
    x = 82,345.15

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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.