Home / 135,377.87-186,822.92-74,949.50

Finding the Fourth Proportional to 135,377.87, 186,822.92 and 74,949.50

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Solution

The fourth proportional to 135,377.87, 186,822.92 and 74,949.50 is: 103,431.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,377.87 : 186,822.92 = 74,949.50 : x
  2. Step 2: Convert to fraction form
    135,377.87/186,822.92 = 74,949.50/x
  3. Step 3: Cross multiply
    135,377.87x = 186,822.92 × 74,949.50
  4. Step 4: Simplify right side
    135,377.87x = 14,002,285,096.97
  5. Step 5: Solve for x
    x = 14,002,285,096.97/135,377.87
  6. Step 6: Final answer
    x = 103,431.13

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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.