Home / 121,195.20-167,155.32-107,597.61

Finding the Fourth Proportional to 121,195.20, 167,155.32 and 107,597.61

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Solution

The fourth proportional to 121,195.20, 167,155.32 and 107,597.61 is: 148,401.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,195.20 : 167,155.32 = 107,597.61 : x
  2. Step 2: Convert to fraction form
    121,195.20/167,155.32 = 107,597.61/x
  3. Step 3: Cross multiply
    121,195.20x = 167,155.32 × 107,597.61
  4. Step 4: Simplify right side
    121,195.20x = 17,985,512,930.79
  5. Step 5: Solve for x
    x = 17,985,512,930.79/121,195.20
  6. Step 6: Final answer
    x = 148,401.20

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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.