Home / 148,569.76-205,025.07-80,586.56

Finding the Fourth Proportional to 148,569.76, 205,025.07 and 80,586.56

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Solution

The fourth proportional to 148,569.76, 205,025.07 and 80,586.56 is: 111,208.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,569.76 : 205,025.07 = 80,586.56 : x
  2. Step 2: Convert to fraction form
    148,569.76/205,025.07 = 80,586.56/x
  3. Step 3: Cross multiply
    148,569.76x = 205,025.07 × 80,586.56
  4. Step 4: Simplify right side
    148,569.76x = 16,522,265,919.82
  5. Step 5: Solve for x
    x = 16,522,265,919.82/148,569.76
  6. Step 6: Final answer
    x = 111,208.81

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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.