Home / 113,785.80-156,956.75-73,523.30

Finding the Fourth Proportional to 113,785.80, 156,956.75 and 73,523.30

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Solution

The fourth proportional to 113,785.80, 156,956.75 and 73,523.30 is: 101,418.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,785.80 : 156,956.75 = 73,523.30 : x
  2. Step 2: Convert to fraction form
    113,785.80/156,956.75 = 73,523.30/x
  3. Step 3: Cross multiply
    113,785.80x = 156,956.75 × 73,523.30
  4. Step 4: Simplify right side
    113,785.80x = 11,539,978,217.28
  5. Step 5: Solve for x
    x = 11,539,978,217.28/113,785.80
  6. Step 6: Final answer
    x = 101,418.44

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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.