Home / 143,664.86-198,162.50-89,856.46

Finding the Fourth Proportional to 143,664.86, 198,162.50 and 89,856.46

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Solution

The fourth proportional to 143,664.86, 198,162.50 and 89,856.46 is: 123,942.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,664.86 : 198,162.50 = 89,856.46 : x
  2. Step 2: Convert to fraction form
    143,664.86/198,162.50 = 89,856.46/x
  3. Step 3: Cross multiply
    143,664.86x = 198,162.50 × 89,856.46
  4. Step 4: Simplify right side
    143,664.86x = 17,806,180,754.75
  5. Step 5: Solve for x
    x = 17,806,180,754.75/143,664.86
  6. Step 6: Final answer
    x = 123,942.49

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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.