Home / 185,003.43-255,304.74-100,120.50

Finding the Fourth Proportional to 185,003.43, 255,304.74 and 100,120.50

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Solution

The fourth proportional to 185,003.43, 255,304.74 and 100,120.50 is: 138,166.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,003.43 : 255,304.74 = 100,120.50 : x
  2. Step 2: Convert to fraction form
    185,003.43/255,304.74 = 100,120.50/x
  3. Step 3: Cross multiply
    185,003.43x = 255,304.74 × 100,120.50
  4. Step 4: Simplify right side
    185,003.43x = 25,561,238,221.17
  5. Step 5: Solve for x
    x = 25,561,238,221.17/185,003.43
  6. Step 6: Final answer
    x = 138,166.29

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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.