Home / 106,432.20-159,429.60-73,189.80

Finding the Fourth Proportional to 106,432.20, 159,429.60 and 73,189.80

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Solution

The fourth proportional to 106,432.20, 159,429.60 and 73,189.80 is: 109,634.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,432.20 : 159,429.60 = 73,189.80 : x
  2. Step 2: Convert to fraction form
    106,432.20/159,429.60 = 73,189.80/x
  3. Step 3: Cross multiply
    106,432.20x = 159,429.60 × 73,189.80
  4. Step 4: Simplify right side
    106,432.20x = 11,668,620,538.08
  5. Step 5: Solve for x
    x = 11,668,620,538.08/106,432.20
  6. Step 6: Final answer
    x = 109,634.31

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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.