Home / 106,434.20-159,432.60-73,191.80

Finding the Fourth Proportional to 106,434.20, 159,432.60 and 73,191.80

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Solution

The fourth proportional to 106,434.20, 159,432.60 and 73,191.80 is: 109,637.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,434.20 : 159,432.60 = 73,191.80 : x
  2. Step 2: Convert to fraction form
    106,434.20/159,432.60 = 73,191.80/x
  3. Step 3: Cross multiply
    106,434.20x = 159,432.60 × 73,191.80
  4. Step 4: Simplify right side
    106,434.20x = 11,669,158,972.68
  5. Step 5: Solve for x
    x = 11,669,158,972.68/106,434.20
  6. Step 6: Final answer
    x = 109,637.31

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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.