Home / 91,286.20-136,929.30-75,734.20

Finding the Fourth Proportional to 91,286.20, 136,929.30 and 75,734.20

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Solution

The fourth proportional to 91,286.20, 136,929.30 and 75,734.20 is: 113,601.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,286.20 : 136,929.30 = 75,734.20 : x
  2. Step 2: Convert to fraction form
    91,286.20/136,929.30 = 75,734.20/x
  3. Step 3: Cross multiply
    91,286.20x = 136,929.30 × 75,734.20
  4. Step 4: Simplify right side
    91,286.20x = 10,370,230,992.06
  5. Step 5: Solve for x
    x = 10,370,230,992.06/91,286.20
  6. Step 6: Final answer
    x = 113,601.30

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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.