Home / 185,791.38-256,391.91-100,908.51

Finding the Fourth Proportional to 185,791.38, 256,391.91 and 100,908.51

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Solution

The fourth proportional to 185,791.38, 256,391.91 and 100,908.51 is: 139,253.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,791.38 : 256,391.91 = 100,908.51 : x
  2. Step 2: Convert to fraction form
    185,791.38/256,391.91 = 100,908.51/x
  3. Step 3: Cross multiply
    185,791.38x = 256,391.91 × 100,908.51
  4. Step 4: Simplify right side
    185,791.38x = 25,872,125,614.15
  5. Step 5: Solve for x
    x = 25,872,125,614.15/185,791.38
  6. Step 6: Final answer
    x = 139,253.64

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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.