Home / 185,002.32-255,304-100,119.38

Finding the Fourth Proportional to 185,002.32, 255,304 and 100,119.38

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Solution

The fourth proportional to 185,002.32, 255,304 and 100,119.38 is: 138,165.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,002.32 : 255,304 = 100,119.38 : x
  2. Step 2: Convert to fraction form
    185,002.32/255,304 = 100,119.38/x
  3. Step 3: Cross multiply
    185,002.32x = 255,304 × 100,119.38
  4. Step 4: Simplify right side
    185,002.32x = 25,560,878,191.52
  5. Step 5: Solve for x
    x = 25,560,878,191.52/185,002.32
  6. Step 6: Final answer
    x = 138,165.18

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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.