Home / 148,960.05-205,568.87-80,981.58

Finding the Fourth Proportional to 148,960.05, 205,568.87 and 80,981.58

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Solution

The fourth proportional to 148,960.05, 205,568.87 and 80,981.58 is: 111,756.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,960.05 : 205,568.87 = 80,981.58 : x
  2. Step 2: Convert to fraction form
    148,960.05/205,568.87 = 80,981.58/x
  3. Step 3: Cross multiply
    148,960.05x = 205,568.87 × 80,981.58
  4. Step 4: Simplify right side
    148,960.05x = 16,647,291,486.51
  5. Step 5: Solve for x
    x = 16,647,291,486.51/148,960.05
  6. Step 6: Final answer
    x = 111,756.75

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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.