Home / 91,433.75-137,149.68-69,382.58

Finding the Fourth Proportional to 91,433.75, 137,149.68 and 69,382.58

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Solution

The fourth proportional to 91,433.75, 137,149.68 and 69,382.58 is: 104,073.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,433.75 : 137,149.68 = 69,382.58 : x
  2. Step 2: Convert to fraction form
    91,433.75/137,149.68 = 69,382.58/x
  3. Step 3: Cross multiply
    91,433.75x = 137,149.68 × 69,382.58
  4. Step 4: Simplify right side
    91,433.75x = 9,515,798,644.57
  5. Step 5: Solve for x
    x = 9,515,798,644.57/91,433.75
  6. Step 6: Final answer
    x = 104,073.15

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1.5x scale

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.