Home / 129,700.20-194,442.30-54,877.80

Finding the Fourth Proportional to 129,700.20, 194,442.30 and 54,877.80

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Solution

The fourth proportional to 129,700.20, 194,442.30 and 54,877.80 is: 82,271.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,700.20 : 194,442.30 = 54,877.80 : x
  2. Step 2: Convert to fraction form
    129,700.20/194,442.30 = 54,877.80/x
  3. Step 3: Cross multiply
    129,700.20x = 194,442.30 × 54,877.80
  4. Step 4: Simplify right side
    129,700.20x = 10,670,565,650.94
  5. Step 5: Solve for x
    x = 10,670,565,650.94/129,700.20
  6. Step 6: Final answer
    x = 82,271.00

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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.