Home / 145,286.67-217,942.53-40,105.65

Finding the Fourth Proportional to 145,286.67, 217,942.53 and 40,105.65

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Solution

The fourth proportional to 145,286.67, 217,942.53 and 40,105.65 is: 60,161.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,286.67 : 217,942.53 = 40,105.65 : x
  2. Step 2: Convert to fraction form
    145,286.67/217,942.53 = 40,105.65/x
  3. Step 3: Cross multiply
    145,286.67x = 217,942.53 × 40,105.65
  4. Step 4: Simplify right side
    145,286.67x = 8,740,726,828.29
  5. Step 5: Solve for x
    x = 8,740,726,828.29/145,286.67
  6. Step 6: Final answer
    x = 60,161.93

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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.