Home / 143,724.07-198,295.31-83,283.04

Finding the Fourth Proportional to 143,724.07, 198,295.31 and 83,283.04

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Solution

The fourth proportional to 143,724.07, 198,295.31 and 83,283.04 is: 114,905.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,724.07 : 198,295.31 = 83,283.04 : x
  2. Step 2: Convert to fraction form
    143,724.07/198,295.31 = 83,283.04/x
  3. Step 3: Cross multiply
    143,724.07x = 198,295.31 × 83,283.04
  4. Step 4: Simplify right side
    143,724.07x = 16,514,635,947.01
  5. Step 5: Solve for x
    x = 16,514,635,947.01/143,724.07
  6. Step 6: Final answer
    x = 114,905.15

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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.