Home / 136,067.31-187,864.52-121,682.52

Finding the Fourth Proportional to 136,067.31, 187,864.52 and 121,682.52

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Solution

The fourth proportional to 136,067.31, 187,864.52 and 121,682.52 is: 168,003.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,067.31 : 187,864.52 = 121,682.52 : x
  2. Step 2: Convert to fraction form
    136,067.31/187,864.52 = 121,682.52/x
  3. Step 3: Cross multiply
    136,067.31x = 187,864.52 × 121,682.52
  4. Step 4: Simplify right side
    136,067.31x = 22,859,827,603.78
  5. Step 5: Solve for x
    x = 22,859,827,603.78/136,067.31
  6. Step 6: Final answer
    x = 168,003.82

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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.