Home / 143,730.70-198,348.42-83,336.56

Finding the Fourth Proportional to 143,730.70, 198,348.42 and 83,336.56

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Solution

The fourth proportional to 143,730.70, 198,348.42 and 83,336.56 is: 115,004.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,730.70 : 198,348.42 = 83,336.56 : x
  2. Step 2: Convert to fraction form
    143,730.70/198,348.42 = 83,336.56/x
  3. Step 3: Cross multiply
    143,730.70x = 198,348.42 × 83,336.56
  4. Step 4: Simplify right side
    143,730.70x = 16,529,675,004.24
  5. Step 5: Solve for x
    x = 16,529,675,004.24/143,730.70
  6. Step 6: Final answer
    x = 115,004.48

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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.