Home / 120,835.32-166,799.22-80,534.37

Finding the Fourth Proportional to 120,835.32, 166,799.22 and 80,534.37

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Solution

The fourth proportional to 120,835.32, 166,799.22 and 80,534.37 is: 111,168.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,835.32 : 166,799.22 = 80,534.37 : x
  2. Step 2: Convert to fraction form
    120,835.32/166,799.22 = 80,534.37/x
  3. Step 3: Cross multiply
    120,835.32x = 166,799.22 × 80,534.37
  4. Step 4: Simplify right side
    120,835.32x = 13,433,070,099.19
  5. Step 5: Solve for x
    x = 13,433,070,099.19/120,835.32
  6. Step 6: Final answer
    x = 111,168.41

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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.