Home / 140,658.39-194,113.94-80,238.87

Finding the Fourth Proportional to 140,658.39, 194,113.94 and 80,238.87

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Solution

The fourth proportional to 140,658.39, 194,113.94 and 80,238.87 is: 110,732.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,658.39 : 194,113.94 = 80,238.87 : x
  2. Step 2: Convert to fraction form
    140,658.39/194,113.94 = 80,238.87/x
  3. Step 3: Cross multiply
    140,658.39x = 194,113.94 × 80,238.87
  4. Step 4: Simplify right side
    140,658.39x = 15,575,482,795.65
  5. Step 5: Solve for x
    x = 15,575,482,795.65/140,658.39
  6. Step 6: Final answer
    x = 110,732.70

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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.