Home / 129,863.90-194,795.85-74,414.30

Finding the Fourth Proportional to 129,863.90, 194,795.85 and 74,414.30

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Solution

The fourth proportional to 129,863.90, 194,795.85 and 74,414.30 is: 111,621.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,863.90 : 194,795.85 = 74,414.30 : x
  2. Step 2: Convert to fraction form
    129,863.90/194,795.85 = 74,414.30/x
  3. Step 3: Cross multiply
    129,863.90x = 194,795.85 × 74,414.30
  4. Step 4: Simplify right side
    129,863.90x = 14,495,596,820.66
  5. Step 5: Solve for x
    x = 14,495,596,820.66/129,863.90
  6. Step 6: Final answer
    x = 111,621.45

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Similar ratio
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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.