Home / 204,002.10-306,003.15-91,638.90

Finding the Fourth Proportional to 204,002.10, 306,003.15 and 91,638.90

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Solution

The fourth proportional to 204,002.10, 306,003.15 and 91,638.90 is: 137,458.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,002.10 : 306,003.15 = 91,638.90 : x
  2. Step 2: Convert to fraction form
    204,002.10/306,003.15 = 91,638.90/x
  3. Step 3: Cross multiply
    204,002.10x = 306,003.15 × 91,638.90
  4. Step 4: Simplify right side
    204,002.10x = 28,041,792,062.54
  5. Step 5: Solve for x
    x = 28,041,792,062.54/204,002.10
  6. Step 6: Final answer
    x = 137,458.35

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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.