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Finding the Fourth Proportional to 159,493.49, 220,132.89 and 91,556.39

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Solution

The fourth proportional to 159,493.49, 220,132.89 and 91,556.39 is: 126,366.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,493.49 : 220,132.89 = 91,556.39 : x
  2. Step 2: Convert to fraction form
    159,493.49/220,132.89 = 91,556.39/x
  3. Step 3: Cross multiply
    159,493.49x = 220,132.89 × 91,556.39
  4. Step 4: Simplify right side
    159,493.49x = 20,154,573,279.00
  5. Step 5: Solve for x
    x = 20,154,573,279.00/159,493.49
  6. Step 6: Final answer
    x = 126,366.12

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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.