Home / 205,291.20-307,954.26-72,159.96

Finding the Fourth Proportional to 205,291.20, 307,954.26 and 72,159.96

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Solution

The fourth proportional to 205,291.20, 307,954.26 and 72,159.96 is: 108,246.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,291.20 : 307,954.26 = 72,159.96 : x
  2. Step 2: Convert to fraction form
    205,291.20/307,954.26 = 72,159.96/x
  3. Step 3: Cross multiply
    205,291.20x = 307,954.26 × 72,159.96
  4. Step 4: Simplify right side
    205,291.20x = 22,221,967,083.43
  5. Step 5: Solve for x
    x = 22,221,967,083.43/205,291.20
  6. Step 6: Final answer
    x = 108,246.08

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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.