Home / 140,815.65-194,318.15-80,383.89

Finding the Fourth Proportional to 140,815.65, 194,318.15 and 80,383.89

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Solution

The fourth proportional to 140,815.65, 194,318.15 and 80,383.89 is: 110,925.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,815.65 : 194,318.15 = 80,383.89 : x
  2. Step 2: Convert to fraction form
    140,815.65/194,318.15 = 80,383.89/x
  3. Step 3: Cross multiply
    140,815.65x = 194,318.15 × 80,383.89
  4. Step 4: Simplify right side
    140,815.65x = 15,620,048,392.68
  5. Step 5: Solve for x
    x = 15,620,048,392.68/140,815.65
  6. Step 6: Final answer
    x = 110,925.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.