Home / 136,221.29-187,986.31-75,794.48

Finding the Fourth Proportional to 136,221.29, 187,986.31 and 75,794.48

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Solution

The fourth proportional to 136,221.29, 187,986.31 and 75,794.48 is: 104,596.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,221.29 : 187,986.31 = 75,794.48 : x
  2. Step 2: Convert to fraction form
    136,221.29/187,986.31 = 75,794.48/x
  3. Step 3: Cross multiply
    136,221.29x = 187,986.31 × 75,794.48
  4. Step 4: Simplify right side
    136,221.29x = 14,248,324,613.57
  5. Step 5: Solve for x
    x = 14,248,324,613.57/136,221.29
  6. Step 6: Final answer
    x = 104,596.90

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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.