Home / 143,791.61-198,349.97-89,983.20

Finding the Fourth Proportional to 143,791.61, 198,349.97 and 89,983.20

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Solution

The fourth proportional to 143,791.61, 198,349.97 and 89,983.20 is: 124,125.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,791.61 : 198,349.97 = 89,983.20 : x
  2. Step 2: Convert to fraction form
    143,791.61/198,349.97 = 89,983.20/x
  3. Step 3: Cross multiply
    143,791.61x = 198,349.97 × 89,983.20
  4. Step 4: Simplify right side
    143,791.61x = 17,848,165,314.40
  5. Step 5: Solve for x
    x = 17,848,165,314.40/143,791.61
  6. Step 6: Final answer
    x = 124,125.22

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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.