Home / 157,427.72-217,256.12-89,456.22

Finding the Fourth Proportional to 157,427.72, 217,256.12 and 89,456.22

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Solution

The fourth proportional to 157,427.72, 217,256.12 and 89,456.22 is: 123,452.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,427.72 : 217,256.12 = 89,456.22 : x
  2. Step 2: Convert to fraction form
    157,427.72/217,256.12 = 89,456.22/x
  3. Step 3: Cross multiply
    157,427.72x = 217,256.12 × 89,456.22
  4. Step 4: Simplify right side
    157,427.72x = 19,434,910,819.79
  5. Step 5: Solve for x
    x = 19,434,910,819.79/157,427.72
  6. Step 6: Final answer
    x = 123,452.92

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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.