Home / 231,569.80-319,629.18-136,107.16

Finding the Fourth Proportional to 231,569.80, 319,629.18 and 136,107.16

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Solution

The fourth proportional to 231,569.80, 319,629.18 and 136,107.16 is: 187,864.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,569.80 : 319,629.18 = 136,107.16 : x
  2. Step 2: Convert to fraction form
    231,569.80/319,629.18 = 136,107.16/x
  3. Step 3: Cross multiply
    231,569.80x = 319,629.18 × 136,107.16
  4. Step 4: Simplify right side
    231,569.80x = 43,503,819,942.93
  5. Step 5: Solve for x
    x = 43,503,819,942.93/231,569.80
  6. Step 6: Final answer
    x = 187,864.82

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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.