Home / 107,748.15-148,621.19-67,391.85

Finding the Fourth Proportional to 107,748.15, 148,621.19 and 67,391.85

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Solution

The fourth proportional to 107,748.15, 148,621.19 and 67,391.85 is: 92,956.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,748.15 : 148,621.19 = 67,391.85 : x
  2. Step 2: Convert to fraction form
    107,748.15/148,621.19 = 67,391.85/x
  3. Step 3: Cross multiply
    107,748.15x = 148,621.19 × 67,391.85
  4. Step 4: Simplify right side
    107,748.15x = 10,015,856,943.30
  5. Step 5: Solve for x
    x = 10,015,856,943.30/107,748.15
  6. Step 6: Final answer
    x = 92,956.18

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1.5x scale

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.