Home / 136,822.20-205,233.30-86,958.60

Finding the Fourth Proportional to 136,822.20, 205,233.30 and 86,958.60

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Solution

The fourth proportional to 136,822.20, 205,233.30 and 86,958.60 is: 130,437.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,822.20 : 205,233.30 = 86,958.60 : x
  2. Step 2: Convert to fraction form
    136,822.20/205,233.30 = 86,958.60/x
  3. Step 3: Cross multiply
    136,822.20x = 205,233.30 × 86,958.60
  4. Step 4: Simplify right side
    136,822.20x = 17,846,800,441.38
  5. Step 5: Solve for x
    x = 17,846,800,441.38/136,822.20
  6. Step 6: Final answer
    x = 130,437.90

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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.