Home / 140,742.54-194,176.47-80,269.71

Finding the Fourth Proportional to 140,742.54, 194,176.47 and 80,269.71

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Solution

The fourth proportional to 140,742.54, 194,176.47 and 80,269.71 is: 110,744.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,742.54 : 194,176.47 = 80,269.71 : x
  2. Step 2: Convert to fraction form
    140,742.54/194,176.47 = 80,269.71/x
  3. Step 3: Cross multiply
    140,742.54x = 194,176.47 × 80,269.71
  4. Step 4: Simplify right side
    140,742.54x = 15,586,488,935.72
  5. Step 5: Solve for x
    x = 15,586,488,935.72/140,742.54
  6. Step 6: Final answer
    x = 110,744.69

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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.