Home / 136,103.52-187,822.68-75,672.26

Finding the Fourth Proportional to 136,103.52, 187,822.68 and 75,672.26

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Solution

The fourth proportional to 136,103.52, 187,822.68 and 75,672.26 is: 104,427.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,103.52 : 187,822.68 = 75,672.26 : x
  2. Step 2: Convert to fraction form
    136,103.52/187,822.68 = 75,672.26/x
  3. Step 3: Cross multiply
    136,103.52x = 187,822.68 × 75,672.26
  4. Step 4: Simplify right side
    136,103.52x = 14,212,965,735.74
  5. Step 5: Solve for x
    x = 14,212,965,735.74/136,103.52
  6. Step 6: Final answer
    x = 104,427.61

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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.