Home / 121,418.06-182,109.31-87,844.19

Finding the Fourth Proportional to 121,418.06, 182,109.31 and 87,844.19

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Solution

The fourth proportional to 121,418.06, 182,109.31 and 87,844.19 is: 131,753.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,418.06 : 182,109.31 = 87,844.19 : x
  2. Step 2: Convert to fraction form
    121,418.06/182,109.31 = 87,844.19/x
  3. Step 3: Cross multiply
    121,418.06x = 182,109.31 × 87,844.19
  4. Step 4: Simplify right side
    121,418.06x = 15,997,243,698.25
  5. Step 5: Solve for x
    x = 15,997,243,698.25/121,418.06
  6. Step 6: Final answer
    x = 131,753.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.