Home / 143,608.11-198,050.18-89,898.03

Finding the Fourth Proportional to 143,608.11, 198,050.18 and 89,898.03

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Solution

The fourth proportional to 143,608.11, 198,050.18 and 89,898.03 is: 123,978.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,608.11 : 198,050.18 = 89,898.03 : x
  2. Step 2: Convert to fraction form
    143,608.11/198,050.18 = 89,898.03/x
  3. Step 3: Cross multiply
    143,608.11x = 198,050.18 × 89,898.03
  4. Step 4: Simplify right side
    143,608.11x = 17,804,320,257.64
  5. Step 5: Solve for x
    x = 17,804,320,257.64/143,608.11
  6. Step 6: Final answer
    x = 123,978.51

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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.