Home / 148,890.26-205,500.96-91,578.84

Finding the Fourth Proportional to 148,890.26, 205,500.96 and 91,578.84

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Solution

The fourth proportional to 148,890.26, 205,500.96 and 91,578.84 is: 126,398.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,890.26 : 205,500.96 = 91,578.84 : x
  2. Step 2: Convert to fraction form
    148,890.26/205,500.96 = 91,578.84/x
  3. Step 3: Cross multiply
    148,890.26x = 205,500.96 × 91,578.84
  4. Step 4: Simplify right side
    148,890.26x = 18,819,539,535.69
  5. Step 5: Solve for x
    x = 18,819,539,535.69/148,890.26
  6. Step 6: Final answer
    x = 126,398.73

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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.