Home / 135,067.35-186,404.16-74,649.79

Finding the Fourth Proportional to 135,067.35, 186,404.16 and 74,649.79

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Solution

The fourth proportional to 135,067.35, 186,404.16 and 74,649.79 is: 103,022.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,067.35 : 186,404.16 = 74,649.79 : x
  2. Step 2: Convert to fraction form
    135,067.35/186,404.16 = 74,649.79/x
  3. Step 3: Cross multiply
    135,067.35x = 186,404.16 × 74,649.79
  4. Step 4: Simplify right side
    135,067.35x = 13,915,030,467.11
  5. Step 5: Solve for x
    x = 13,915,030,467.11/135,067.35
  6. Step 6: Final answer
    x = 103,022.91

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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.