Home / 121,181.97-181,856-42,296.19

Finding the Fourth Proportional to 121,181.97, 181,856 and 42,296.19

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Solution

The fourth proportional to 121,181.97, 181,856 and 42,296.19 is: 63,473.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,181.97 : 181,856 = 42,296.19 : x
  2. Step 2: Convert to fraction form
    121,181.97/181,856 = 42,296.19/x
  3. Step 3: Cross multiply
    121,181.97x = 181,856 × 42,296.19
  4. Step 4: Simplify right side
    121,181.97x = 7,691,815,928.64
  5. Step 5: Solve for x
    x = 7,691,815,928.64/121,181.97
  6. Step 6: Final answer
    x = 63,473.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.