Home / 204,853.60-307,280.40-125,711.20

Finding the Fourth Proportional to 204,853.60, 307,280.40 and 125,711.20

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Solution

The fourth proportional to 204,853.60, 307,280.40 and 125,711.20 is: 188,566.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,853.60 : 307,280.40 = 125,711.20 : x
  2. Step 2: Convert to fraction form
    204,853.60/307,280.40 = 125,711.20/x
  3. Step 3: Cross multiply
    204,853.60x = 307,280.40 × 125,711.20
  4. Step 4: Simplify right side
    204,853.60x = 38,628,587,820.48
  5. Step 5: Solve for x
    x = 38,628,587,820.48/204,853.60
  6. Step 6: Final answer
    x = 188,566.80

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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.