Home / 136,761.53-205,121.77-43,255.13

Finding the Fourth Proportional to 136,761.53, 205,121.77 and 43,255.13

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Solution

The fourth proportional to 136,761.53, 205,121.77 and 43,255.13 is: 64,876.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,761.53 : 205,121.77 = 43,255.13 : x
  2. Step 2: Convert to fraction form
    136,761.53/205,121.77 = 43,255.13/x
  3. Step 3: Cross multiply
    136,761.53x = 205,121.77 × 43,255.13
  4. Step 4: Simplify right side
    136,761.53x = 8,872,567,693.43
  5. Step 5: Solve for x
    x = 8,872,567,693.43/136,761.53
  6. Step 6: Final answer
    x = 64,876.20

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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.