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Finding the Fourth Proportional to 157,144.56, 216,882.34 and 88,241.75

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Solution

The fourth proportional to 157,144.56, 216,882.34 and 88,241.75 is: 121,786.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,144.56 : 216,882.34 = 88,241.75 : x
  2. Step 2: Convert to fraction form
    157,144.56/216,882.34 = 88,241.75/x
  3. Step 3: Cross multiply
    157,144.56x = 216,882.34 × 88,241.75
  4. Step 4: Simplify right side
    157,144.56x = 19,138,078,450.31
  5. Step 5: Solve for x
    x = 19,138,078,450.31/157,144.56
  6. Step 6: Final answer
    x = 121,786.46

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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.