Home / 168,377.85-232,391.54-100,399.20

Finding the Fourth Proportional to 168,377.85, 232,391.54 and 100,399.20

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Solution

The fourth proportional to 168,377.85, 232,391.54 and 100,399.20 is: 138,568.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,377.85 : 232,391.54 = 100,399.20 : x
  2. Step 2: Convert to fraction form
    168,377.85/232,391.54 = 100,399.20/x
  3. Step 3: Cross multiply
    168,377.85x = 232,391.54 × 100,399.20
  4. Step 4: Simplify right side
    168,377.85x = 23,331,924,200.77
  5. Step 5: Solve for x
    x = 23,331,924,200.77/168,377.85
  6. Step 6: Final answer
    x = 138,568.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.