Home / 185,400.38-255,853.08-100,517.48

Finding the Fourth Proportional to 185,400.38, 255,853.08 and 100,517.48

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Solution

The fourth proportional to 185,400.38, 255,853.08 and 100,517.48 is: 138,714.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,400.38 : 255,853.08 = 100,517.48 : x
  2. Step 2: Convert to fraction form
    185,400.38/255,853.08 = 100,517.48/x
  3. Step 3: Cross multiply
    185,400.38x = 255,853.08 × 100,517.48
  4. Step 4: Simplify right side
    185,400.38x = 25,717,706,851.84
  5. Step 5: Solve for x
    x = 25,717,706,851.84/185,400.38
  6. Step 6: Final answer
    x = 138,714.42

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1.5x scale

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.