Home / 136,468.20-188,404.26-91,222.81

Finding the Fourth Proportional to 136,468.20, 188,404.26 and 91,222.81

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Solution

The fourth proportional to 136,468.20, 188,404.26 and 91,222.81 is: 125,939.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,468.20 : 188,404.26 = 91,222.81 : x
  2. Step 2: Convert to fraction form
    136,468.20/188,404.26 = 91,222.81/x
  3. Step 3: Cross multiply
    136,468.20x = 188,404.26 × 91,222.81
  4. Step 4: Simplify right side
    136,468.20x = 17,186,766,013.17
  5. Step 5: Solve for x
    x = 17,186,766,013.17/136,468.20
  6. Step 6: Final answer
    x = 125,939.71

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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.