Home / 136,972.86-205,431.96-48,229.86

Finding the Fourth Proportional to 136,972.86, 205,431.96 and 48,229.86

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Solution

The fourth proportional to 136,972.86, 205,431.96 and 48,229.86 is: 72,335.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,972.86 : 205,431.96 = 48,229.86 : x
  2. Step 2: Convert to fraction form
    136,972.86/205,431.96 = 48,229.86/x
  3. Step 3: Cross multiply
    136,972.86x = 205,431.96 × 48,229.86
  4. Step 4: Simplify right side
    136,972.86x = 9,907,954,670.33
  5. Step 5: Solve for x
    x = 9,907,954,670.33/136,972.86
  6. Step 6: Final answer
    x = 72,335.17

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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.