Home / 135,645.24-187,209.72-75,229.32

Finding the Fourth Proportional to 135,645.24, 187,209.72 and 75,229.32

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Solution

The fourth proportional to 135,645.24, 187,209.72 and 75,229.32 is: 103,827.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,645.24 : 187,209.72 = 75,229.32 : x
  2. Step 2: Convert to fraction form
    135,645.24/187,209.72 = 75,229.32/x
  3. Step 3: Cross multiply
    135,645.24x = 187,209.72 × 75,229.32
  4. Step 4: Simplify right side
    135,645.24x = 14,083,659,932.99
  5. Step 5: Solve for x
    x = 14,083,659,932.99/135,645.24
  6. Step 6: Final answer
    x = 103,827.16

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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.