Home / 205,787.52-283,991.04-115,145.28

Finding the Fourth Proportional to 205,787.52, 283,991.04 and 115,145.28

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Solution

The fourth proportional to 205,787.52, 283,991.04 and 115,145.28 is: 158,902.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,787.52 : 283,991.04 = 115,145.28 : x
  2. Step 2: Convert to fraction form
    205,787.52/283,991.04 = 115,145.28/x
  3. Step 3: Cross multiply
    205,787.52x = 283,991.04 × 115,145.28
  4. Step 4: Simplify right side
    205,787.52x = 32,700,227,818.29
  5. Step 5: Solve for x
    x = 32,700,227,818.29/205,787.52
  6. Step 6: Final answer
    x = 158,902.87

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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.