Home / 161,161.28-222,396.24-89,545.76

Finding the Fourth Proportional to 161,161.28, 222,396.24 and 89,545.76

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Solution

The fourth proportional to 161,161.28, 222,396.24 and 89,545.76 is: 123,569.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,161.28 : 222,396.24 = 89,545.76 : x
  2. Step 2: Convert to fraction form
    161,161.28/222,396.24 = 89,545.76/x
  3. Step 3: Cross multiply
    161,161.28x = 222,396.24 × 89,545.76
  4. Step 4: Simplify right side
    161,161.28x = 19,914,640,331.94
  5. Step 5: Solve for x
    x = 19,914,640,331.94/161,161.28
  6. Step 6: Final answer
    x = 123,569.63

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1.5x scale

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.