Home / 136,133.82-187,881.42-82,437.51

Finding the Fourth Proportional to 136,133.82, 187,881.42 and 82,437.51

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Solution

The fourth proportional to 136,133.82, 187,881.42 and 82,437.51 is: 113,773.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,133.82 : 187,881.42 = 82,437.51 : x
  2. Step 2: Convert to fraction form
    136,133.82/187,881.42 = 82,437.51/x
  3. Step 3: Cross multiply
    136,133.82x = 187,881.42 × 82,437.51
  4. Step 4: Simplify right side
    136,133.82x = 15,488,476,440.06
  5. Step 5: Solve for x
    x = 15,488,476,440.06/136,133.82
  6. Step 6: Final answer
    x = 113,773.91

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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.