Home / 148,799.21-205,344.39-80,817.51

Finding the Fourth Proportional to 148,799.21, 205,344.39 and 80,817.51

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Solution

The fourth proportional to 148,799.21, 205,344.39 and 80,817.51 is: 111,528.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,799.21 : 205,344.39 = 80,817.51 : x
  2. Step 2: Convert to fraction form
    148,799.21/205,344.39 = 80,817.51/x
  3. Step 3: Cross multiply
    148,799.21x = 205,344.39 × 80,817.51
  4. Step 4: Simplify right side
    148,799.21x = 16,595,422,292.27
  5. Step 5: Solve for x
    x = 16,595,422,292.27/148,799.21
  6. Step 6: Final answer
    x = 111,528.97

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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.