Home / 205,909.25-284,160.70-115,264.68

Finding the Fourth Proportional to 205,909.25, 284,160.70 and 115,264.68

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Solution

The fourth proportional to 205,909.25, 284,160.70 and 115,264.68 is: 159,068.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,909.25 : 284,160.70 = 115,264.68 : x
  2. Step 2: Convert to fraction form
    205,909.25/284,160.70 = 115,264.68/x
  3. Step 3: Cross multiply
    205,909.25x = 284,160.70 × 115,264.68
  4. Step 4: Simplify right side
    205,909.25x = 32,753,690,156.95
  5. Step 5: Solve for x
    x = 32,753,690,156.95/205,909.25
  6. Step 6: Final answer
    x = 159,068.57

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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.