Home / 148,145.94-204,439.90-80,161.42

Finding the Fourth Proportional to 148,145.94, 204,439.90 and 80,161.42

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Solution

The fourth proportional to 148,145.94, 204,439.90 and 80,161.42 is: 110,621.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,145.94 : 204,439.90 = 80,161.42 : x
  2. Step 2: Convert to fraction form
    148,145.94/204,439.90 = 80,161.42/x
  3. Step 3: Cross multiply
    148,145.94x = 204,439.90 × 80,161.42
  4. Step 4: Simplify right side
    148,145.94x = 16,388,192,688.66
  5. Step 5: Solve for x
    x = 16,388,192,688.66/148,145.94
  6. Step 6: Final answer
    x = 110,621.95

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1.5x scale

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.