Home / 107,766.12-148,785.32-79,422.44

Finding the Fourth Proportional to 107,766.12, 148,785.32 and 79,422.44

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Solution

The fourth proportional to 107,766.12, 148,785.32 and 79,422.44 is: 109,653.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,766.12 : 148,785.32 = 79,422.44 : x
  2. Step 2: Convert to fraction form
    107,766.12/148,785.32 = 79,422.44/x
  3. Step 3: Cross multiply
    107,766.12x = 148,785.32 × 79,422.44
  4. Step 4: Simplify right side
    107,766.12x = 11,816,893,150.58
  5. Step 5: Solve for x
    x = 11,816,893,150.58/107,766.12
  6. Step 6: Final answer
    x = 109,653.14

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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.