Home / 91,600.28-137,398.98-66,797.72

Finding the Fourth Proportional to 91,600.28, 137,398.98 and 66,797.72

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Solution

The fourth proportional to 91,600.28, 137,398.98 and 66,797.72 is: 100,195.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,600.28 : 137,398.98 = 66,797.72 : x
  2. Step 2: Convert to fraction form
    91,600.28/137,398.98 = 66,797.72/x
  3. Step 3: Cross multiply
    91,600.28x = 137,398.98 × 66,797.72
  4. Step 4: Simplify right side
    91,600.28x = 9,177,938,594.33
  5. Step 5: Solve for x
    x = 9,177,938,594.33/91,600.28
  6. Step 6: Final answer
    x = 100,195.53

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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.