Home / 172,668.37-258,934.49-83,895.61

Finding the Fourth Proportional to 172,668.37, 258,934.49 and 83,895.61

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Solution

The fourth proportional to 172,668.37, 258,934.49 and 83,895.61 is: 125,810.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,668.37 : 258,934.49 = 83,895.61 : x
  2. Step 2: Convert to fraction form
    172,668.37/258,934.49 = 83,895.61/x
  3. Step 3: Cross multiply
    172,668.37x = 258,934.49 × 83,895.61
  4. Step 4: Simplify right side
    172,668.37x = 21,723,466,569.11
  5. Step 5: Solve for x
    x = 21,723,466,569.11/172,668.37
  6. Step 6: Final answer
    x = 125,810.34

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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.