Home / 144,127.62-198,887.76-80,469.45

Finding the Fourth Proportional to 144,127.62, 198,887.76 and 80,469.45

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Solution

The fourth proportional to 144,127.62, 198,887.76 and 80,469.45 is: 111,043.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,127.62 : 198,887.76 = 80,469.45 : x
  2. Step 2: Convert to fraction form
    144,127.62/198,887.76 = 80,469.45/x
  3. Step 3: Cross multiply
    144,127.62x = 198,887.76 × 80,469.45
  4. Step 4: Simplify right side
    144,127.62x = 16,004,388,658.93
  5. Step 5: Solve for x
    x = 16,004,388,658.93/144,127.62
  6. Step 6: Final answer
    x = 111,043.18

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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.