Home / 121,319.98-182,082.21-51,249.58

Finding the Fourth Proportional to 121,319.98, 182,082.21 and 51,249.58

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Solution

The fourth proportional to 121,319.98, 182,082.21 and 51,249.58 is: 76,917.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,319.98 : 182,082.21 = 51,249.58 : x
  2. Step 2: Convert to fraction form
    121,319.98/182,082.21 = 51,249.58/x
  3. Step 3: Cross multiply
    121,319.98x = 182,082.21 × 51,249.58
  4. Step 4: Simplify right side
    121,319.98x = 9,331,636,787.97
  5. Step 5: Solve for x
    x = 9,331,636,787.97/121,319.98
  6. Step 6: Final answer
    x = 76,917.56

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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.