Home / 121,181.87-181,855.85-42,296.11

Finding the Fourth Proportional to 121,181.87, 181,855.85 and 42,296.11

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Solution

The fourth proportional to 121,181.87, 181,855.85 and 42,296.11 is: 63,473.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,181.87 : 181,855.85 = 42,296.11 : x
  2. Step 2: Convert to fraction form
    121,181.87/181,855.85 = 42,296.11/x
  3. Step 3: Cross multiply
    121,181.87x = 181,855.85 × 42,296.11
  4. Step 4: Simplify right side
    121,181.87x = 7,691,794,369.62
  5. Step 5: Solve for x
    x = 7,691,794,369.62/121,181.87
  6. Step 6: Final answer
    x = 63,473.14

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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.