Home / 219,986.70-303,585.96-143,554.70

Finding the Fourth Proportional to 219,986.70, 303,585.96 and 143,554.70

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Solution

The fourth proportional to 219,986.70, 303,585.96 and 143,554.70 is: 198,108.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,986.70 : 303,585.96 = 143,554.70 : x
  2. Step 2: Convert to fraction form
    219,986.70/303,585.96 = 143,554.70/x
  3. Step 3: Cross multiply
    219,986.70x = 303,585.96 × 143,554.70
  4. Step 4: Simplify right side
    219,986.70x = 43,581,190,194.14
  5. Step 5: Solve for x
    x = 43,581,190,194.14/219,986.70
  6. Step 6: Final answer
    x = 198,108.29

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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.