Home / 135,645.42-187,200.27-75,221.85

Finding the Fourth Proportional to 135,645.42, 187,200.27 and 75,221.85

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Solution

The fourth proportional to 135,645.42, 187,200.27 and 75,221.85 is: 103,811.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,645.42 : 187,200.27 = 75,221.85 : x
  2. Step 2: Convert to fraction form
    135,645.42/187,200.27 = 75,221.85/x
  3. Step 3: Cross multiply
    135,645.42x = 187,200.27 × 75,221.85
  4. Step 4: Simplify right side
    135,645.42x = 14,081,550,629.90
  5. Step 5: Solve for x
    x = 14,081,550,629.90/135,645.42
  6. Step 6: Final answer
    x = 103,811.47

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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.