Home / 161,269.68-222,542.40-89,647.20

Finding the Fourth Proportional to 161,269.68, 222,542.40 and 89,647.20

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Solution

The fourth proportional to 161,269.68, 222,542.40 and 89,647.20 is: 123,707.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,269.68 : 222,542.40 = 89,647.20 : x
  2. Step 2: Convert to fraction form
    161,269.68/222,542.40 = 89,647.20/x
  3. Step 3: Cross multiply
    161,269.68x = 222,542.40 × 89,647.20
  4. Step 4: Simplify right side
    161,269.68x = 19,950,303,041.28
  5. Step 5: Solve for x
    x = 19,950,303,041.28/161,269.68
  6. Step 6: Final answer
    x = 123,707.71

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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.