Home / 161,185.32-222,435.54-89,572.32

Finding the Fourth Proportional to 161,185.32, 222,435.54 and 89,572.32

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Solution

The fourth proportional to 161,185.32, 222,435.54 and 89,572.32 is: 123,609.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,185.32 : 222,435.54 = 89,572.32 : x
  2. Step 2: Convert to fraction form
    161,185.32/222,435.54 = 89,572.32/x
  3. Step 3: Cross multiply
    161,185.32x = 222,435.54 × 89,572.32
  4. Step 4: Simplify right side
    161,185.32x = 19,924,067,368.25
  5. Step 5: Solve for x
    x = 19,924,067,368.25/161,185.32
  6. Step 6: Final answer
    x = 123,609.69

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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.