Home / 129,120.55-193,691.99-35,626.29

Finding the Fourth Proportional to 129,120.55, 193,691.99 and 35,626.29

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Solution

The fourth proportional to 129,120.55, 193,691.99 and 35,626.29 is: 53,442.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,120.55 : 193,691.99 = 35,626.29 : x
  2. Step 2: Convert to fraction form
    129,120.55/193,691.99 = 35,626.29/x
  3. Step 3: Cross multiply
    129,120.55x = 193,691.99 × 35,626.29
  4. Step 4: Simplify right side
    129,120.55x = 6,900,525,948.89
  5. Step 5: Solve for x
    x = 6,900,525,948.89/129,120.55
  6. Step 6: Final answer
    x = 53,442.51

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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.