Home / 137,620.22-206,365.26-53,420.72

Finding the Fourth Proportional to 137,620.22, 206,365.26 and 53,420.72

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Solution

The fourth proportional to 137,620.22, 206,365.26 and 53,420.72 is: 80,105.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,620.22 : 206,365.26 = 53,420.72 : x
  2. Step 2: Convert to fraction form
    137,620.22/206,365.26 = 53,420.72/x
  3. Step 3: Cross multiply
    137,620.22x = 206,365.26 × 53,420.72
  4. Step 4: Simplify right side
    137,620.22x = 11,024,180,772.19
  5. Step 5: Solve for x
    x = 11,024,180,772.19/137,620.22
  6. Step 6: Final answer
    x = 80,105.82

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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.