Home / 143,815.69-198,472.41-80,153.94

Finding the Fourth Proportional to 143,815.69, 198,472.41 and 80,153.94

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Solution

The fourth proportional to 143,815.69, 198,472.41 and 80,153.94 is: 110,616.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,815.69 : 198,472.41 = 80,153.94 : x
  2. Step 2: Convert to fraction form
    143,815.69/198,472.41 = 80,153.94/x
  3. Step 3: Cross multiply
    143,815.69x = 198,472.41 × 80,153.94
  4. Step 4: Simplify right side
    143,815.69x = 15,908,345,642.80
  5. Step 5: Solve for x
    x = 15,908,345,642.80/143,815.69
  6. Step 6: Final answer
    x = 110,616.20

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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.