Home / 204,750.20-282,729.84-128,397.80

Finding the Fourth Proportional to 204,750.20, 282,729.84 and 128,397.80

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Solution

The fourth proportional to 204,750.20, 282,729.84 and 128,397.80 is: 177,298.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,750.20 : 282,729.84 = 128,397.80 : x
  2. Step 2: Convert to fraction form
    204,750.20/282,729.84 = 128,397.80/x
  3. Step 3: Cross multiply
    204,750.20x = 282,729.84 × 128,397.80
  4. Step 4: Simplify right side
    204,750.20x = 36,301,889,450.35
  5. Step 5: Solve for x
    x = 36,301,889,450.35/204,750.20
  6. Step 6: Final answer
    x = 177,298.43

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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.