Home / 151,874.66-209,582.82-83,890.55

Finding the Fourth Proportional to 151,874.66, 209,582.82 and 83,890.55

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Solution

The fourth proportional to 151,874.66, 209,582.82 and 83,890.55 is: 115,766.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,874.66 : 209,582.82 = 83,890.55 : x
  2. Step 2: Convert to fraction form
    151,874.66/209,582.82 = 83,890.55/x
  3. Step 3: Cross multiply
    151,874.66x = 209,582.82 × 83,890.55
  4. Step 4: Simplify right side
    151,874.66x = 17,582,016,992.44
  5. Step 5: Solve for x
    x = 17,582,016,992.44/151,874.66
  6. Step 6: Final answer
    x = 115,766.63

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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.