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Finding the Fourth Proportional to 100,695.60, 151,044.84 and 43,756.56

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Solution

The fourth proportional to 100,695.60, 151,044.84 and 43,756.56 is: 65,635.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,695.60 : 151,044.84 = 43,756.56 : x
  2. Step 2: Convert to fraction form
    100,695.60/151,044.84 = 43,756.56/x
  3. Step 3: Cross multiply
    100,695.60x = 151,044.84 × 43,756.56
  4. Step 4: Simplify right side
    100,695.60x = 6,609,202,604.15
  5. Step 5: Solve for x
    x = 6,609,202,604.15/100,695.60
  6. Step 6: Final answer
    x = 65,635.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.