Home / 161,388.62-222,713.10-89,767.10

Finding the Fourth Proportional to 161,388.62, 222,713.10 and 89,767.10

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Solution

The fourth proportional to 161,388.62, 222,713.10 and 89,767.10 is: 123,876.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,388.62 : 222,713.10 = 89,767.10 : x
  2. Step 2: Convert to fraction form
    161,388.62/222,713.10 = 89,767.10/x
  3. Step 3: Cross multiply
    161,388.62x = 222,713.10 × 89,767.10
  4. Step 4: Simplify right side
    161,388.62x = 19,992,309,119.01
  5. Step 5: Solve for x
    x = 19,992,309,119.01/161,388.62
  6. Step 6: Final answer
    x = 123,876.82

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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.