Home / 154,170.97-212,757.52-86,191.72

Finding the Fourth Proportional to 154,170.97, 212,757.52 and 86,191.72

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Solution

The fourth proportional to 154,170.97, 212,757.52 and 86,191.72 is: 118,945.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,170.97 : 212,757.52 = 86,191.72 : x
  2. Step 2: Convert to fraction form
    154,170.97/212,757.52 = 86,191.72/x
  3. Step 3: Cross multiply
    154,170.97x = 212,757.52 × 86,191.72
  4. Step 4: Simplify right side
    154,170.97x = 18,337,936,591.73
  5. Step 5: Solve for x
    x = 18,337,936,591.73/154,170.97
  6. Step 6: Final answer
    x = 118,945.46

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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.