Home / 148,831.45-205,388.93-80,849.77

Finding the Fourth Proportional to 148,831.45, 205,388.93 and 80,849.77

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Solution

The fourth proportional to 148,831.45, 205,388.93 and 80,849.77 is: 111,573.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,831.45 : 205,388.93 = 80,849.77 : x
  2. Step 2: Convert to fraction form
    148,831.45/205,388.93 = 80,849.77/x
  3. Step 3: Cross multiply
    148,831.45x = 205,388.93 × 80,849.77
  4. Step 4: Simplify right side
    148,831.45x = 16,605,647,439.70
  5. Step 5: Solve for x
    x = 16,605,647,439.70/148,831.45
  6. Step 6: Final answer
    x = 111,573.51

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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.