Home / 120,902.40-166,835.76-67,186.56

Finding the Fourth Proportional to 120,902.40, 166,835.76 and 67,186.56

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Solution

The fourth proportional to 120,902.40, 166,835.76 and 67,186.56 is: 92,712.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,902.40 : 166,835.76 = 67,186.56 : x
  2. Step 2: Convert to fraction form
    120,902.40/166,835.76 = 67,186.56/x
  3. Step 3: Cross multiply
    120,902.40x = 166,835.76 × 67,186.56
  4. Step 4: Simplify right side
    120,902.40x = 11,209,120,799.39
  5. Step 5: Solve for x
    x = 11,209,120,799.39/120,902.40
  6. Step 6: Final answer
    x = 92,712.14

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1.5x scale

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.