Home / 143,614.25-198,058.64-89,904.15

Finding the Fourth Proportional to 143,614.25, 198,058.64 and 89,904.15

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Solution

The fourth proportional to 143,614.25, 198,058.64 and 89,904.15 is: 123,986.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,614.25 : 198,058.64 = 89,904.15 : x
  2. Step 2: Convert to fraction form
    143,614.25/198,058.64 = 89,904.15/x
  3. Step 3: Cross multiply
    143,614.25x = 198,058.64 × 89,904.15
  4. Step 4: Simplify right side
    143,614.25x = 17,806,293,229.84
  5. Step 5: Solve for x
    x = 17,806,293,229.84/143,614.25
  6. Step 6: Final answer
    x = 123,986.96

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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.