Home / 143,662.36-198,159.06-89,853.96

Finding the Fourth Proportional to 143,662.36, 198,159.06 and 89,853.96

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Solution

The fourth proportional to 143,662.36, 198,159.06 and 89,853.96 is: 123,939.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,662.36 : 198,159.06 = 89,853.96 : x
  2. Step 2: Convert to fraction form
    143,662.36/198,159.06 = 89,853.96/x
  3. Step 3: Cross multiply
    143,662.36x = 198,159.06 × 89,853.96
  4. Step 4: Simplify right side
    143,662.36x = 17,805,375,710.85
  5. Step 5: Solve for x
    x = 17,805,375,710.85/143,662.36
  6. Step 6: Final answer
    x = 123,939.05

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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.