Home / 142,207.41-196,247.43-78,546.27

Finding the Fourth Proportional to 142,207.41, 196,247.43 and 78,546.27

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Solution

The fourth proportional to 142,207.41, 196,247.43 and 78,546.27 is: 108,394.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,207.41 : 196,247.43 = 78,546.27 : x
  2. Step 2: Convert to fraction form
    142,207.41/196,247.43 = 78,546.27/x
  3. Step 3: Cross multiply
    142,207.41x = 196,247.43 × 78,546.27
  4. Step 4: Simplify right side
    142,207.41x = 15,414,503,230.85
  5. Step 5: Solve for x
    x = 15,414,503,230.85/142,207.41
  6. Step 6: Final answer
    x = 108,394.51

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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.