Home / 135,286.96-186,680-74,849.62

Finding the Fourth Proportional to 135,286.96, 186,680 and 74,849.62

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Solution

The fourth proportional to 135,286.96, 186,680 and 74,849.62 is: 103,283.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,286.96 : 186,680 = 74,849.62 : x
  2. Step 2: Convert to fraction form
    135,286.96/186,680 = 74,849.62/x
  3. Step 3: Cross multiply
    135,286.96x = 186,680 × 74,849.62
  4. Step 4: Simplify right side
    135,286.96x = 13,972,927,061.60
  5. Step 5: Solve for x
    x = 13,972,927,061.60/135,286.96
  6. Step 6: Final answer
    x = 103,283.62

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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.