Home / 201,632.80-278,279.76-115,625.44

Finding the Fourth Proportional to 201,632.80, 278,279.76 and 115,625.44

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Solution

The fourth proportional to 201,632.80, 278,279.76 and 115,625.44 is: 159,578.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,632.80 : 278,279.76 = 115,625.44 : x
  2. Step 2: Convert to fraction form
    201,632.80/278,279.76 = 115,625.44/x
  3. Step 3: Cross multiply
    201,632.80x = 278,279.76 × 115,625.44
  4. Step 4: Simplify right side
    201,632.80x = 32,176,219,693.09
  5. Step 5: Solve for x
    x = 32,176,219,693.09/201,632.80
  6. Step 6: Final answer
    x = 159,578.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.