Home / 135,366.35-186,799.50-74,932.72

Finding the Fourth Proportional to 135,366.35, 186,799.50 and 74,932.72

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Solution

The fourth proportional to 135,366.35, 186,799.50 and 74,932.72 is: 103,403.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,366.35 : 186,799.50 = 74,932.72 : x
  2. Step 2: Convert to fraction form
    135,366.35/186,799.50 = 74,932.72/x
  3. Step 3: Cross multiply
    135,366.35x = 186,799.50 × 74,932.72
  4. Step 4: Simplify right side
    135,366.35x = 13,997,394,162.64
  5. Step 5: Solve for x
    x = 13,997,394,162.64/135,366.35
  6. Step 6: Final answer
    x = 103,403.80

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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.