Home / 148,399.75-204,804.62-81,344.71

Finding the Fourth Proportional to 148,399.75, 204,804.62 and 81,344.71

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Solution

The fourth proportional to 148,399.75, 204,804.62 and 81,344.71 is: 112,262.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,399.75 : 204,804.62 = 81,344.71 : x
  2. Step 2: Convert to fraction form
    148,399.75/204,804.62 = 81,344.71/x
  3. Step 3: Cross multiply
    148,399.75x = 204,804.62 × 81,344.71
  4. Step 4: Simplify right side
    148,399.75x = 16,659,772,420.56
  5. Step 5: Solve for x
    x = 16,659,772,420.56/148,399.75
  6. Step 6: Final answer
    x = 112,262.81

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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.