Home / 206,974.66-285,621.62-115,090.28

Finding the Fourth Proportional to 206,974.66, 285,621.62 and 115,090.28

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Solution

The fourth proportional to 206,974.66, 285,621.62 and 115,090.28 is: 158,822.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,974.66 : 285,621.62 = 115,090.28 : x
  2. Step 2: Convert to fraction form
    206,974.66/285,621.62 = 115,090.28/x
  3. Step 3: Cross multiply
    206,974.66x = 285,621.62 × 115,090.28
  4. Step 4: Simplify right side
    206,974.66x = 32,872,272,219.85
  5. Step 5: Solve for x
    x = 32,872,272,219.85/206,974.66
  6. Step 6: Final answer
    x = 158,822.69

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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.