Home / 120,819.46-166,663.66-112,266.57

Finding the Fourth Proportional to 120,819.46, 166,663.66 and 112,266.57

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Solution

The fourth proportional to 120,819.46, 166,663.66 and 112,266.57 is: 154,865.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,819.46 : 166,663.66 = 112,266.57 : x
  2. Step 2: Convert to fraction form
    120,819.46/166,663.66 = 112,266.57/x
  3. Step 3: Cross multiply
    120,819.46x = 166,663.66 × 112,266.57
  4. Step 4: Simplify right side
    120,819.46x = 18,710,757,451.85
  5. Step 5: Solve for x
    x = 18,710,757,451.85/120,819.46
  6. Step 6: Final answer
    x = 154,865.43

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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.