Home / 113,135.05-156,091.24-65,370.97

Finding the Fourth Proportional to 113,135.05, 156,091.24 and 65,370.97

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Solution

The fourth proportional to 113,135.05, 156,091.24 and 65,370.97 is: 90,191.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,135.05 : 156,091.24 = 65,370.97 : x
  2. Step 2: Convert to fraction form
    113,135.05/156,091.24 = 65,370.97/x
  3. Step 3: Cross multiply
    113,135.05x = 156,091.24 × 65,370.97
  4. Step 4: Simplify right side
    113,135.05x = 10,203,835,767.30
  5. Step 5: Solve for x
    x = 10,203,835,767.30/113,135.05
  6. Step 6: Final answer
    x = 90,191.64

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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.