Home / 136,419.22-188,251.04-75,163.39

Finding the Fourth Proportional to 136,419.22, 188,251.04 and 75,163.39

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Solution

The fourth proportional to 136,419.22, 188,251.04 and 75,163.39 is: 103,721.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,419.22 : 188,251.04 = 75,163.39 : x
  2. Step 2: Convert to fraction form
    136,419.22/188,251.04 = 75,163.39/x
  3. Step 3: Cross multiply
    136,419.22x = 188,251.04 × 75,163.39
  4. Step 4: Simplify right side
    136,419.22x = 14,149,586,690.82
  5. Step 5: Solve for x
    x = 14,149,586,690.82/136,419.22
  6. Step 6: Final answer
    x = 103,721.36

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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.