Home / 143,886.97-198,560.69-83,463.19

Finding the Fourth Proportional to 143,886.97, 198,560.69 and 83,463.19

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Solution

The fourth proportional to 143,886.97, 198,560.69 and 83,463.19 is: 115,177.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,886.97 : 198,560.69 = 83,463.19 : x
  2. Step 2: Convert to fraction form
    143,886.97/198,560.69 = 83,463.19/x
  3. Step 3: Cross multiply
    143,886.97x = 198,560.69 × 83,463.19
  4. Step 4: Simplify right side
    143,886.97x = 16,572,507,185.88
  5. Step 5: Solve for x
    x = 16,572,507,185.88/143,886.97
  6. Step 6: Final answer
    x = 115,177.27

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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.