Home / 135,233.78-186,620.30-74,804.37

Finding the Fourth Proportional to 135,233.78, 186,620.30 and 74,804.37

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Solution

The fourth proportional to 135,233.78, 186,620.30 and 74,804.37 is: 103,228.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,233.78 : 186,620.30 = 74,804.37 : x
  2. Step 2: Convert to fraction form
    135,233.78/186,620.30 = 74,804.37/x
  3. Step 3: Cross multiply
    135,233.78x = 186,620.30 × 74,804.37
  4. Step 4: Simplify right side
    135,233.78x = 13,960,014,157.72
  5. Step 5: Solve for x
    x = 13,960,014,157.72/135,233.78
  6. Step 6: Final answer
    x = 103,228.75

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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.