Home / 205,207.26-307,843.29-78,842.46

Finding the Fourth Proportional to 205,207.26, 307,843.29 and 78,842.46

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Solution

The fourth proportional to 205,207.26, 307,843.29 and 78,842.46 is: 118,276.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,207.26 : 307,843.29 = 78,842.46 : x
  2. Step 2: Convert to fraction form
    205,207.26/307,843.29 = 78,842.46/x
  3. Step 3: Cross multiply
    205,207.26x = 307,843.29 × 78,842.46
  4. Step 4: Simplify right side
    205,207.26x = 24,271,122,278.09
  5. Step 5: Solve for x
    x = 24,271,122,278.09/205,207.26
  6. Step 6: Final answer
    x = 118,276.14

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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.