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Finding the Fourth Proportional to 147,405.52, 203,419.68 and 80,337.52

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Solution

The fourth proportional to 147,405.52, 203,419.68 and 80,337.52 is: 110,865.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,405.52 : 203,419.68 = 80,337.52 : x
  2. Step 2: Convert to fraction form
    147,405.52/203,419.68 = 80,337.52/x
  3. Step 3: Cross multiply
    147,405.52x = 203,419.68 × 80,337.52
  4. Step 4: Simplify right side
    147,405.52x = 16,342,232,610.39
  5. Step 5: Solve for x
    x = 16,342,232,610.39/147,405.52
  6. Step 6: Final answer
    x = 110,865.81

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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.