Home / 111,932.20-167,898.30-103,378.60

Finding the Fourth Proportional to 111,932.20, 167,898.30 and 103,378.60

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Solution

The fourth proportional to 111,932.20, 167,898.30 and 103,378.60 is: 155,067.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,932.20 : 167,898.30 = 103,378.60 : x
  2. Step 2: Convert to fraction form
    111,932.20/167,898.30 = 103,378.60/x
  3. Step 3: Cross multiply
    111,932.20x = 167,898.30 × 103,378.60
  4. Step 4: Simplify right side
    111,932.20x = 17,357,091,196.38
  5. Step 5: Solve for x
    x = 17,357,091,196.38/111,932.20
  6. Step 6: Final answer
    x = 155,067.90

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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.