Home / 211,458.06-291,785.22-120,819.89

Finding the Fourth Proportional to 211,458.06, 291,785.22 and 120,819.89

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Solution

The fourth proportional to 211,458.06, 291,785.22 and 120,819.89 is: 166,716.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,458.06 : 291,785.22 = 120,819.89 : x
  2. Step 2: Convert to fraction form
    211,458.06/291,785.22 = 120,819.89/x
  3. Step 3: Cross multiply
    211,458.06x = 291,785.22 × 120,819.89
  4. Step 4: Simplify right side
    211,458.06x = 35,253,458,913.49
  5. Step 5: Solve for x
    x = 35,253,458,913.49/211,458.06
  6. Step 6: Final answer
    x = 166,716.08

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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.