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Finding the Fourth Proportional to 115,447.50, 159,320.01 and 63,764.34

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Solution

The fourth proportional to 115,447.50, 159,320.01 and 63,764.34 is: 87,996.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,447.50 : 159,320.01 = 63,764.34 : x
  2. Step 2: Convert to fraction form
    115,447.50/159,320.01 = 63,764.34/x
  3. Step 3: Cross multiply
    115,447.50x = 159,320.01 × 63,764.34
  4. Step 4: Simplify right side
    115,447.50x = 10,158,935,286.44
  5. Step 5: Solve for x
    x = 10,158,935,286.44/115,447.50
  6. Step 6: Final answer
    x = 87,996.15

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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.