Home / 206,974.17-285,648.02-115,102.61

Finding the Fourth Proportional to 206,974.17, 285,648.02 and 115,102.61

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Solution

The fourth proportional to 206,974.17, 285,648.02 and 115,102.61 is: 158,854.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,974.17 : 285,648.02 = 115,102.61 : x
  2. Step 2: Convert to fraction form
    206,974.17/285,648.02 = 115,102.61/x
  3. Step 3: Cross multiply
    206,974.17x = 285,648.02 × 115,102.61
  4. Step 4: Simplify right side
    206,974.17x = 32,878,831,015.28
  5. Step 5: Solve for x
    x = 32,878,831,015.28/206,974.17
  6. Step 6: Final answer
    x = 158,854.75

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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.