Home / 211,914.78-317,927.44-123,082.88

Finding the Fourth Proportional to 211,914.78, 317,927.44 and 123,082.88

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Solution

The fourth proportional to 211,914.78, 317,927.44 and 123,082.88 is: 184,656.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,914.78 : 317,927.44 = 123,082.88 : x
  2. Step 2: Convert to fraction form
    211,914.78/317,927.44 = 123,082.88/x
  3. Step 3: Cross multiply
    211,914.78x = 317,927.44 × 123,082.88
  4. Step 4: Simplify right side
    211,914.78x = 39,131,424,946.23
  5. Step 5: Solve for x
    x = 39,131,424,946.23/211,914.78
  6. Step 6: Final answer
    x = 184,656.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.