Home / 143,699.66-198,287.56-83,269.20

Finding the Fourth Proportional to 143,699.66, 198,287.56 and 83,269.20

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Solution

The fourth proportional to 143,699.66, 198,287.56 and 83,269.20 is: 114,901.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,699.66 : 198,287.56 = 83,269.20 : x
  2. Step 2: Convert to fraction form
    143,699.66/198,287.56 = 83,269.20/x
  3. Step 3: Cross multiply
    143,699.66x = 198,287.56 × 83,269.20
  4. Step 4: Simplify right side
    143,699.66x = 16,511,246,491.15
  5. Step 5: Solve for x
    x = 16,511,246,491.15/143,699.66
  6. Step 6: Final answer
    x = 114,901.08

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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.