Home / 185,079.12-255,409.74-100,195.98

Finding the Fourth Proportional to 185,079.12, 255,409.74 and 100,195.98

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Solution

The fourth proportional to 185,079.12, 255,409.74 and 100,195.98 is: 138,270.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,079.12 : 255,409.74 = 100,195.98 : x
  2. Step 2: Convert to fraction form
    185,079.12/255,409.74 = 100,195.98/x
  3. Step 3: Cross multiply
    185,079.12x = 255,409.74 × 100,195.98
  4. Step 4: Simplify right side
    185,079.12x = 25,591,029,200.85
  5. Step 5: Solve for x
    x = 25,591,029,200.85/185,079.12
  6. Step 6: Final answer
    x = 138,270.75

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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.