Home / 121,418.14-182,016.27-42,489.31

Finding the Fourth Proportional to 121,418.14, 182,016.27 and 42,489.31

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Solution

The fourth proportional to 121,418.14, 182,016.27 and 42,489.31 is: 63,695.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,418.14 : 182,016.27 = 42,489.31 : x
  2. Step 2: Convert to fraction form
    121,418.14/182,016.27 = 42,489.31/x
  3. Step 3: Cross multiply
    121,418.14x = 182,016.27 × 42,489.31
  4. Step 4: Simplify right side
    121,418.14x = 7,733,745,721.07
  5. Step 5: Solve for x
    x = 7,733,745,721.07/121,418.14
  6. Step 6: Final answer
    x = 63,695.14

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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.