Home / 148,695.84-205,195.68-80,709.60

Finding the Fourth Proportional to 148,695.84, 205,195.68 and 80,709.60

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Solution

The fourth proportional to 148,695.84, 205,195.68 and 80,709.60 is: 111,376.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,695.84 : 205,195.68 = 80,709.60 : x
  2. Step 2: Convert to fraction form
    148,695.84/205,195.68 = 80,709.60/x
  3. Step 3: Cross multiply
    148,695.84x = 205,195.68 × 80,709.60
  4. Step 4: Simplify right side
    148,695.84x = 16,561,261,254.53
  5. Step 5: Solve for x
    x = 16,561,261,254.53/148,695.84
  6. Step 6: Final answer
    x = 111,376.76

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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.