Home / 123,074.08-169,757.92-75,351.01

Finding the Fourth Proportional to 123,074.08, 169,757.92 and 75,351.01

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Solution

The fourth proportional to 123,074.08, 169,757.92 and 75,351.01 is: 103,932.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,074.08 : 169,757.92 = 75,351.01 : x
  2. Step 2: Convert to fraction form
    123,074.08/169,757.92 = 75,351.01/x
  3. Step 3: Cross multiply
    123,074.08x = 169,757.92 × 75,351.01
  4. Step 4: Simplify right side
    123,074.08x = 12,791,430,727.50
  5. Step 5: Solve for x
    x = 12,791,430,727.50/123,074.08
  6. Step 6: Final answer
    x = 103,932.78

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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.