Home / 129,637.40-194,747.70-124,680.20

Finding the Fourth Proportional to 129,637.40, 194,747.70 and 124,680.20

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Solution

The fourth proportional to 129,637.40, 194,747.70 and 124,680.20 is: 187,300.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,637.40 : 194,747.70 = 124,680.20 : x
  2. Step 2: Convert to fraction form
    129,637.40/194,747.70 = 124,680.20/x
  3. Step 3: Cross multiply
    129,637.40x = 194,747.70 × 124,680.20
  4. Step 4: Simplify right side
    129,637.40x = 24,281,182,185.54
  5. Step 5: Solve for x
    x = 24,281,182,185.54/129,637.40
  6. Step 6: Final answer
    x = 187,300.75

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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.