Home / 129,625.70-194,438.55-40,906.40

Finding the Fourth Proportional to 129,625.70, 194,438.55 and 40,906.40

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Solution

The fourth proportional to 129,625.70, 194,438.55 and 40,906.40 is: 61,359.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,625.70 : 194,438.55 = 40,906.40 : x
  2. Step 2: Convert to fraction form
    129,625.70/194,438.55 = 40,906.40/x
  3. Step 3: Cross multiply
    129,625.70x = 194,438.55 × 40,906.40
  4. Step 4: Simplify right side
    129,625.70x = 7,953,781,101.72
  5. Step 5: Solve for x
    x = 7,953,781,101.72/129,625.70
  6. Step 6: Final answer
    x = 61,359.60

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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.