Home / 203,992.20-306,088.56-91,751.76

Finding the Fourth Proportional to 203,992.20, 306,088.56 and 91,751.76

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Solution

The fourth proportional to 203,992.20, 306,088.56 and 91,751.76 is: 137,672.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,992.20 : 306,088.56 = 91,751.76 : x
  2. Step 2: Convert to fraction form
    203,992.20/306,088.56 = 91,751.76/x
  3. Step 3: Cross multiply
    203,992.20x = 306,088.56 × 91,751.76
  4. Step 4: Simplify right side
    203,992.20x = 28,084,164,095.87
  5. Step 5: Solve for x
    x = 28,084,164,095.87/203,992.20
  6. Step 6: Final answer
    x = 137,672.74

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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.