Home / 105,523.20-158,150.40-43,123.20

Finding the Fourth Proportional to 105,523.20, 158,150.40 and 43,123.20

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Solution

The fourth proportional to 105,523.20, 158,150.40 and 43,123.20 is: 64,629.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,523.20 : 158,150.40 = 43,123.20 : x
  2. Step 2: Convert to fraction form
    105,523.20/158,150.40 = 43,123.20/x
  3. Step 3: Cross multiply
    105,523.20x = 158,150.40 × 43,123.20
  4. Step 4: Simplify right side
    105,523.20x = 6,819,951,329.28
  5. Step 5: Solve for x
    x = 6,819,951,329.28/105,523.20
  6. Step 6: Final answer
    x = 64,629.88

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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.