Home / 107,660.11-148,416.97-75,729.91

Finding the Fourth Proportional to 107,660.11, 148,416.97 and 75,729.91

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Solution

The fourth proportional to 107,660.11, 148,416.97 and 75,729.91 is: 104,398.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,660.11 : 148,416.97 = 75,729.91 : x
  2. Step 2: Convert to fraction form
    107,660.11/148,416.97 = 75,729.91/x
  3. Step 3: Cross multiply
    107,660.11x = 148,416.97 × 75,729.91
  4. Step 4: Simplify right side
    107,660.11x = 11,239,603,780.57
  5. Step 5: Solve for x
    x = 11,239,603,780.57/107,660.11
  6. Step 6: Final answer
    x = 104,398.96

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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.