Home / 136,723.48-205,083.84-43,229.20

Finding the Fourth Proportional to 136,723.48, 205,083.84 and 43,229.20

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Solution

The fourth proportional to 136,723.48, 205,083.84 and 43,229.20 is: 64,843.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,723.48 : 205,083.84 = 43,229.20 : x
  2. Step 2: Convert to fraction form
    136,723.48/205,083.84 = 43,229.20/x
  3. Step 3: Cross multiply
    136,723.48x = 205,083.84 × 43,229.20
  4. Step 4: Simplify right side
    136,723.48x = 8,865,610,336.13
  5. Step 5: Solve for x
    x = 8,865,610,336.13/136,723.48
  6. Step 6: Final answer
    x = 64,843.36

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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.