Home / 129,862.20-194,639.70-54,982.20

Finding the Fourth Proportional to 129,862.20, 194,639.70 and 54,982.20

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Solution

The fourth proportional to 129,862.20, 194,639.70 and 54,982.20 is: 82,408.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,862.20 : 194,639.70 = 54,982.20 : x
  2. Step 2: Convert to fraction form
    129,862.20/194,639.70 = 54,982.20/x
  3. Step 3: Cross multiply
    129,862.20x = 194,639.70 × 54,982.20
  4. Step 4: Simplify right side
    129,862.20x = 10,701,718,913.34
  5. Step 5: Solve for x
    x = 10,701,718,913.34/129,862.20
  6. Step 6: Final answer
    x = 82,408.27

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1.5x scale

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.