Home / 204,125.40-306,042.30-91,713.60

Finding the Fourth Proportional to 204,125.40, 306,042.30 and 91,713.60

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Solution

The fourth proportional to 204,125.40, 306,042.30 and 91,713.60 is: 137,504.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,125.40 : 306,042.30 = 91,713.60 : x
  2. Step 2: Convert to fraction form
    204,125.40/306,042.30 = 91,713.60/x
  3. Step 3: Cross multiply
    204,125.40x = 306,042.30 × 91,713.60
  4. Step 4: Simplify right side
    204,125.40x = 28,068,241,085.28
  5. Step 5: Solve for x
    x = 28,068,241,085.28/204,125.40
  6. Step 6: Final answer
    x = 137,504.89

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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.