Home / 185,131.55-255,481.09-100,248.61

Finding the Fourth Proportional to 185,131.55, 255,481.09 and 100,248.61

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Solution

The fourth proportional to 185,131.55, 255,481.09 and 100,248.61 is: 138,342.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,131.55 : 255,481.09 = 100,248.61 : x
  2. Step 2: Convert to fraction form
    185,131.55/255,481.09 = 100,248.61/x
  3. Step 3: Cross multiply
    185,131.55x = 255,481.09 × 100,248.61
  4. Step 4: Simplify right side
    185,131.55x = 25,611,624,153.78
  5. Step 5: Solve for x
    x = 25,611,624,153.78/185,131.55
  6. Step 6: Final answer
    x = 138,342.84

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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.