Home / 120,921.50-166,822.53-69,924.44

Finding the Fourth Proportional to 120,921.50, 166,822.53 and 69,924.44

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Solution

The fourth proportional to 120,921.50, 166,822.53 and 69,924.44 is: 96,467.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,921.50 : 166,822.53 = 69,924.44 : x
  2. Step 2: Convert to fraction form
    120,921.50/166,822.53 = 69,924.44/x
  3. Step 3: Cross multiply
    120,921.50x = 166,822.53 × 69,924.44
  4. Step 4: Simplify right side
    120,921.50x = 11,664,971,989.63
  5. Step 5: Solve for x
    x = 11,664,971,989.63/120,921.50
  6. Step 6: Final answer
    x = 96,467.31

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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.