Home / 157,944.38-217,962.83-86,324.88

Finding the Fourth Proportional to 157,944.38, 217,962.83 and 86,324.88

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Solution

The fourth proportional to 157,944.38, 217,962.83 and 86,324.88 is: 119,128.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,944.38 : 217,962.83 = 86,324.88 : x
  2. Step 2: Convert to fraction form
    157,944.38/217,962.83 = 86,324.88/x
  3. Step 3: Cross multiply
    157,944.38x = 217,962.83 × 86,324.88
  4. Step 4: Simplify right side
    157,944.38x = 18,815,616,177.38
  5. Step 5: Solve for x
    x = 18,815,616,177.38/157,944.38
  6. Step 6: Final answer
    x = 119,128.12

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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.