Home / 129,657.90-194,778.45-124,700.70

Finding the Fourth Proportional to 129,657.90, 194,778.45 and 124,700.70

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Solution

The fourth proportional to 129,657.90, 194,778.45 and 124,700.70 is: 187,331.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,657.90 : 194,778.45 = 124,700.70 : x
  2. Step 2: Convert to fraction form
    129,657.90/194,778.45 = 124,700.70/x
  3. Step 3: Cross multiply
    129,657.90x = 194,778.45 × 124,700.70
  4. Step 4: Simplify right side
    129,657.90x = 24,289,009,059.92
  5. Step 5: Solve for x
    x = 24,289,009,059.92/129,657.90
  6. Step 6: Final answer
    x = 187,331.50

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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.