Home / 137,081.17-205,554.32-48,321.78

Finding the Fourth Proportional to 137,081.17, 205,554.32 and 48,321.78

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Solution

The fourth proportional to 137,081.17, 205,554.32 and 48,321.78 is: 72,458.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,081.17 : 205,554.32 = 48,321.78 : x
  2. Step 2: Convert to fraction form
    137,081.17/205,554.32 = 48,321.78/x
  3. Step 3: Cross multiply
    137,081.17x = 205,554.32 × 48,321.78
  4. Step 4: Simplify right side
    137,081.17x = 9,932,749,797.86
  5. Step 5: Solve for x
    x = 9,932,749,797.86/137,081.17
  6. Step 6: Final answer
    x = 72,458.89

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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.