Home / 128,748.33-192,542.34-98,362.71

Finding the Fourth Proportional to 128,748.33, 192,542.34 and 98,362.71

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Solution

The fourth proportional to 128,748.33, 192,542.34 and 98,362.71 is: 147,100.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,748.33 : 192,542.34 = 98,362.71 : x
  2. Step 2: Convert to fraction form
    128,748.33/192,542.34 = 98,362.71/x
  3. Step 3: Cross multiply
    128,748.33x = 192,542.34 × 98,362.71
  4. Step 4: Simplify right side
    128,748.33x = 18,938,986,352.14
  5. Step 5: Solve for x
    x = 18,938,986,352.14/128,748.33
  6. Step 6: Final answer
    x = 147,100.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.