Home / 185,604.06-256,132.31-100,721.12

Finding the Fourth Proportional to 185,604.06, 256,132.31 and 100,721.12

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Solution

The fourth proportional to 185,604.06, 256,132.31 and 100,721.12 is: 138,994.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,604.06 : 256,132.31 = 100,721.12 : x
  2. Step 2: Convert to fraction form
    185,604.06/256,132.31 = 100,721.12/x
  3. Step 3: Cross multiply
    185,604.06x = 256,132.31 × 100,721.12
  4. Step 4: Simplify right side
    185,604.06x = 25,797,931,347.12
  5. Step 5: Solve for x
    x = 25,797,931,347.12/185,604.06
  6. Step 6: Final answer
    x = 138,994.43

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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.