Home / 185,170.74-255,535.20-100,287.60

Finding the Fourth Proportional to 185,170.74, 255,535.20 and 100,287.60

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Solution

The fourth proportional to 185,170.74, 255,535.20 and 100,287.60 is: 138,396.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,170.74 : 255,535.20 = 100,287.60 : x
  2. Step 2: Convert to fraction form
    185,170.74/255,535.20 = 100,287.60/x
  3. Step 3: Cross multiply
    185,170.74x = 255,535.20 × 100,287.60
  4. Step 4: Simplify right side
    185,170.74x = 25,627,011,923.52
  5. Step 5: Solve for x
    x = 25,627,011,923.52/185,170.74
  6. Step 6: Final answer
    x = 138,396.66

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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.