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Finding the Fourth Proportional to 115,244.99, 159,029.96 and 64,255.54

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Solution

The fourth proportional to 115,244.99, 159,029.96 and 64,255.54 is: 88,668.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,244.99 : 159,029.96 = 64,255.54 : x
  2. Step 2: Convert to fraction form
    115,244.99/159,029.96 = 64,255.54/x
  3. Step 3: Cross multiply
    115,244.99x = 159,029.96 × 64,255.54
  4. Step 4: Simplify right side
    115,244.99x = 10,218,555,397.76
  5. Step 5: Solve for x
    x = 10,218,555,397.76/115,244.99
  6. Step 6: Final answer
    x = 88,668.11

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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.