Home / 143,954.50-198,603.66-83,491.24

Finding the Fourth Proportional to 143,954.50, 198,603.66 and 83,491.24

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Solution

The fourth proportional to 143,954.50, 198,603.66 and 83,491.24 is: 115,186.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,954.50 : 198,603.66 = 83,491.24 : x
  2. Step 2: Convert to fraction form
    143,954.50/198,603.66 = 83,491.24/x
  3. Step 3: Cross multiply
    143,954.50x = 198,603.66 × 83,491.24
  4. Step 4: Simplify right side
    143,954.50x = 16,581,665,841.94
  5. Step 5: Solve for x
    x = 16,581,665,841.94/143,954.50
  6. Step 6: Final answer
    x = 115,186.85

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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.