Home / 211,523.45-291,861.96-120,908.15

Finding the Fourth Proportional to 211,523.45, 291,861.96 and 120,908.15

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Solution

The fourth proportional to 211,523.45, 291,861.96 and 120,908.15 is: 166,830.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,523.45 : 291,861.96 = 120,908.15 : x
  2. Step 2: Convert to fraction form
    211,523.45/291,861.96 = 120,908.15/x
  3. Step 3: Cross multiply
    211,523.45x = 291,861.96 × 120,908.15
  4. Step 4: Simplify right side
    211,523.45x = 35,288,488,179.66
  5. Step 5: Solve for x
    x = 35,288,488,179.66/211,523.45
  6. Step 6: Final answer
    x = 166,830.15

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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.