Home / 143,721.44-198,340.08-82,478.82

Finding the Fourth Proportional to 143,721.44, 198,340.08 and 82,478.82

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Solution

The fourth proportional to 143,721.44, 198,340.08 and 82,478.82 is: 113,823.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,721.44 : 198,340.08 = 82,478.82 : x
  2. Step 2: Convert to fraction form
    143,721.44/198,340.08 = 82,478.82/x
  3. Step 3: Cross multiply
    143,721.44x = 198,340.08 × 82,478.82
  4. Step 4: Simplify right side
    143,721.44x = 16,358,855,757.11
  5. Step 5: Solve for x
    x = 16,358,855,757.11/143,721.44
  6. Step 6: Final answer
    x = 113,823.35

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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.