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Finding the Fourth Proportional to 147,539.52, 203,605.20 and 80,471.52

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Solution

The fourth proportional to 147,539.52, 203,605.20 and 80,471.52 is: 111,051.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,539.52 : 203,605.20 = 80,471.52 : x
  2. Step 2: Convert to fraction form
    147,539.52/203,605.20 = 80,471.52/x
  3. Step 3: Cross multiply
    147,539.52x = 203,605.20 × 80,471.52
  4. Step 4: Simplify right side
    147,539.52x = 16,384,419,923.90
  5. Step 5: Solve for x
    x = 16,384,419,923.90/147,539.52
  6. Step 6: Final answer
    x = 111,051.06

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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.