Home / 185,321.28-255,736.50-100,436.52

Finding the Fourth Proportional to 185,321.28, 255,736.50 and 100,436.52

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Solution

The fourth proportional to 185,321.28, 255,736.50 and 100,436.52 is: 138,598.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,321.28 : 255,736.50 = 100,436.52 : x
  2. Step 2: Convert to fraction form
    185,321.28/255,736.50 = 100,436.52/x
  3. Step 3: Cross multiply
    185,321.28x = 255,736.50 × 100,436.52
  4. Step 4: Simplify right side
    185,321.28x = 25,685,284,096.98
  5. Step 5: Solve for x
    x = 25,685,284,096.98/185,321.28
  6. Step 6: Final answer
    x = 138,598.68

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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.