Home / 242,986.69-335,320.59-135,556.80

Finding the Fourth Proportional to 242,986.69, 335,320.59 and 135,556.80

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Solution

The fourth proportional to 242,986.69, 335,320.59 and 135,556.80 is: 187,067.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,986.69 : 335,320.59 = 135,556.80 : x
  2. Step 2: Convert to fraction form
    242,986.69/335,320.59 = 135,556.80/x
  3. Step 3: Cross multiply
    242,986.69x = 335,320.59 × 135,556.80
  4. Step 4: Simplify right side
    242,986.69x = 45,454,986,154.51
  5. Step 5: Solve for x
    x = 45,454,986,154.51/242,986.69
  6. Step 6: Final answer
    x = 187,067.80

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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.