Home / 222,987.08-307,722.38-121,012.56

Finding the Fourth Proportional to 222,987.08, 307,722.38 and 121,012.56

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Solution

The fourth proportional to 222,987.08, 307,722.38 and 121,012.56 is: 166,997.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,987.08 : 307,722.38 = 121,012.56 : x
  2. Step 2: Convert to fraction form
    222,987.08/307,722.38 = 121,012.56/x
  3. Step 3: Cross multiply
    222,987.08x = 307,722.38 × 121,012.56
  4. Step 4: Simplify right side
    222,987.08x = 37,238,273,742.40
  5. Step 5: Solve for x
    x = 37,238,273,742.40/222,987.08
  6. Step 6: Final answer
    x = 166,997.45

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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.