Home / 149,688.14-206,564.49-89,227.62

Finding the Fourth Proportional to 149,688.14, 206,564.49 and 89,227.62

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Solution

The fourth proportional to 149,688.14, 206,564.49 and 89,227.62 is: 123,131.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,688.14 : 206,564.49 = 89,227.62 : x
  2. Step 2: Convert to fraction form
    149,688.14/206,564.49 = 89,227.62/x
  3. Step 3: Cross multiply
    149,688.14x = 206,564.49 × 89,227.62
  4. Step 4: Simplify right side
    149,688.14x = 18,431,257,819.21
  5. Step 5: Solve for x
    x = 18,431,257,819.21/149,688.14
  6. Step 6: Final answer
    x = 123,131.05

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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.