Home / 91,751.31-137,651.55-73,101.66

Finding the Fourth Proportional to 91,751.31, 137,651.55 and 73,101.66

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Solution

The fourth proportional to 91,751.31, 137,651.55 and 73,101.66 is: 109,672.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,751.31 : 137,651.55 = 73,101.66 : x
  2. Step 2: Convert to fraction form
    91,751.31/137,651.55 = 73,101.66/x
  3. Step 3: Cross multiply
    91,751.31x = 137,651.55 × 73,101.66
  4. Step 4: Simplify right side
    91,751.31x = 10,062,556,806.57
  5. Step 5: Solve for x
    x = 10,062,556,806.57/91,751.31
  6. Step 6: Final answer
    x = 109,672.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.