Home / 157,964.11-217,982.88-86,344.15

Finding the Fourth Proportional to 157,964.11, 217,982.88 and 86,344.15

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Solution

The fourth proportional to 157,964.11, 217,982.88 and 86,344.15 is: 119,150.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,964.11 : 217,982.88 = 86,344.15 : x
  2. Step 2: Convert to fraction form
    157,964.11/217,982.88 = 86,344.15/x
  3. Step 3: Cross multiply
    157,964.11x = 217,982.88 × 86,344.15
  4. Step 4: Simplify right side
    157,964.11x = 18,821,546,488.15
  5. Step 5: Solve for x
    x = 18,821,546,488.15/157,964.11
  6. Step 6: Final answer
    x = 119,150.78

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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.