Home / 135,354.11-186,786.39-74,923.46

Finding the Fourth Proportional to 135,354.11, 186,786.39 and 74,923.46

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Solution

The fourth proportional to 135,354.11, 186,786.39 and 74,923.46 is: 103,393.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,354.11 : 186,786.39 = 74,923.46 : x
  2. Step 2: Convert to fraction form
    135,354.11/186,786.39 = 74,923.46/x
  3. Step 3: Cross multiply
    135,354.11x = 186,786.39 × 74,923.46
  4. Step 4: Simplify right side
    135,354.11x = 13,994,681,685.78
  5. Step 5: Solve for x
    x = 13,994,681,685.78/135,354.11
  6. Step 6: Final answer
    x = 103,393.11

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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.