Home / 143,869.50-198,565.56-90,200.52

Finding the Fourth Proportional to 143,869.50, 198,565.56 and 90,200.52

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Solution

The fourth proportional to 143,869.50, 198,565.56 and 90,200.52 is: 124,492.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,869.50 : 198,565.56 = 90,200.52 : x
  2. Step 2: Convert to fraction form
    143,869.50/198,565.56 = 90,200.52/x
  3. Step 3: Cross multiply
    143,869.50x = 198,565.56 × 90,200.52
  4. Step 4: Simplify right side
    143,869.50x = 17,910,716,766.09
  5. Step 5: Solve for x
    x = 17,910,716,766.09/143,869.50
  6. Step 6: Final answer
    x = 124,492.80

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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.