Home / 161,286.32-222,574.92-89,664.08

Finding the Fourth Proportional to 161,286.32, 222,574.92 and 89,664.08

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Solution

The fourth proportional to 161,286.32, 222,574.92 and 89,664.08 is: 123,736.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,286.32 : 222,574.92 = 89,664.08 : x
  2. Step 2: Convert to fraction form
    161,286.32/222,574.92 = 89,664.08/x
  3. Step 3: Cross multiply
    161,286.32x = 222,574.92 × 89,664.08
  4. Step 4: Simplify right side
    161,286.32x = 19,956,975,432.87
  5. Step 5: Solve for x
    x = 19,956,975,432.87/161,286.32
  6. Step 6: Final answer
    x = 123,736.32

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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.