Home / 113,793.30-156,967.10-73,530.80

Finding the Fourth Proportional to 113,793.30, 156,967.10 and 73,530.80

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Solution

The fourth proportional to 113,793.30, 156,967.10 and 73,530.80 is: 101,428.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,793.30 : 156,967.10 = 73,530.80 : x
  2. Step 2: Convert to fraction form
    113,793.30/156,967.10 = 73,530.80/x
  3. Step 3: Cross multiply
    113,793.30x = 156,967.10 × 73,530.80
  4. Step 4: Simplify right side
    113,793.30x = 11,541,916,436.68
  5. Step 5: Solve for x
    x = 11,541,916,436.68/113,793.30
  6. Step 6: Final answer
    x = 101,428.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.