Home / 199,415.20-298,719.60-124,304.80

Finding the Fourth Proportional to 199,415.20, 298,719.60 and 124,304.80

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Solution

The fourth proportional to 199,415.20, 298,719.60 and 124,304.80 is: 186,205.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,415.20 : 298,719.60 = 124,304.80 : x
  2. Step 2: Convert to fraction form
    199,415.20/298,719.60 = 124,304.80/x
  3. Step 3: Cross multiply
    199,415.20x = 298,719.60 × 124,304.80
  4. Step 4: Simplify right side
    199,415.20x = 37,132,280,134.08
  5. Step 5: Solve for x
    x = 37,132,280,134.08/199,415.20
  6. Step 6: Final answer
    x = 186,205.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.