Home / 205,920.19-284,167.69-115,276.90

Finding the Fourth Proportional to 205,920.19, 284,167.69 and 115,276.90

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Solution

The fourth proportional to 205,920.19, 284,167.69 and 115,276.90 is: 159,080.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,920.19 : 284,167.69 = 115,276.90 : x
  2. Step 2: Convert to fraction form
    205,920.19/284,167.69 = 115,276.90/x
  3. Step 3: Cross multiply
    205,920.19x = 284,167.69 × 115,276.90
  4. Step 4: Simplify right side
    205,920.19x = 32,757,970,383.36
  5. Step 5: Solve for x
    x = 32,757,970,383.36/205,920.19
  6. Step 6: Final answer
    x = 159,080.91

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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.