Home / 222,520.56-307,076.40-120,543.72

Finding the Fourth Proportional to 222,520.56, 307,076.40 and 120,543.72

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Solution

The fourth proportional to 222,520.56, 307,076.40 and 120,543.72 is: 166,349.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,520.56 : 307,076.40 = 120,543.72 : x
  2. Step 2: Convert to fraction form
    222,520.56/307,076.40 = 120,543.72/x
  3. Step 3: Cross multiply
    222,520.56x = 307,076.40 × 120,543.72
  4. Step 4: Simplify right side
    222,520.56x = 37,016,131,580.21
  5. Step 5: Solve for x
    x = 37,016,131,580.21/222,520.56
  6. Step 6: Final answer
    x = 166,349.26

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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.