Home / 112,121.60-168,178.76-45,542.03

Finding the Fourth Proportional to 112,121.60, 168,178.76 and 45,542.03

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Solution

The fourth proportional to 112,121.60, 168,178.76 and 45,542.03 is: 68,311.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,121.60 : 168,178.76 = 45,542.03 : x
  2. Step 2: Convert to fraction form
    112,121.60/168,178.76 = 45,542.03/x
  3. Step 3: Cross multiply
    112,121.60x = 168,178.76 × 45,542.03
  4. Step 4: Simplify right side
    112,121.60x = 7,659,201,905.57
  5. Step 5: Solve for x
    x = 7,659,201,905.57/112,121.60
  6. Step 6: Final answer
    x = 68,311.56

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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.