Home / 167,569.91-231,220.68-99,561.71

Finding the Fourth Proportional to 167,569.91, 231,220.68 and 99,561.71

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Solution

The fourth proportional to 167,569.91, 231,220.68 and 99,561.71 is: 137,379.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,569.91 : 231,220.68 = 99,561.71 : x
  2. Step 2: Convert to fraction form
    167,569.91/231,220.68 = 99,561.71/x
  3. Step 3: Cross multiply
    167,569.91x = 231,220.68 × 99,561.71
  4. Step 4: Simplify right side
    167,569.91x = 23,020,725,132.06
  5. Step 5: Solve for x
    x = 23,020,725,132.06/167,569.91
  6. Step 6: Final answer
    x = 137,379.83

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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.