Home / 235,576.43-325,116.54-138,781.18

Finding the Fourth Proportional to 235,576.43, 325,116.54 and 138,781.18

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Solution

The fourth proportional to 235,576.43, 325,116.54 and 138,781.18 is: 191,530.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,576.43 : 325,116.54 = 138,781.18 : x
  2. Step 2: Convert to fraction form
    235,576.43/325,116.54 = 138,781.18/x
  3. Step 3: Cross multiply
    235,576.43x = 325,116.54 × 138,781.18
  4. Step 4: Simplify right side
    235,576.43x = 45,120,054,739.23
  5. Step 5: Solve for x
    x = 45,120,054,739.23/235,576.43
  6. Step 6: Final answer
    x = 191,530.43

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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.