Home / 121,821.62-182,609.72-50,783.56

Finding the Fourth Proportional to 121,821.62, 182,609.72 and 50,783.56

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Solution

The fourth proportional to 121,821.62, 182,609.72 and 50,783.56 is: 76,124.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,821.62 : 182,609.72 = 50,783.56 : x
  2. Step 2: Convert to fraction form
    121,821.62/182,609.72 = 50,783.56/x
  3. Step 3: Cross multiply
    121,821.62x = 182,609.72 × 50,783.56
  4. Step 4: Simplify right side
    121,821.62x = 9,273,571,152.20
  5. Step 5: Solve for x
    x = 9,273,571,152.20/121,821.62
  6. Step 6: Final answer
    x = 76,124.18

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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.