Home / 211,519.73-291,912.08-120,889.10

Finding the Fourth Proportional to 211,519.73, 291,912.08 and 120,889.10

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Solution

The fourth proportional to 211,519.73, 291,912.08 and 120,889.10 is: 166,835.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,519.73 : 291,912.08 = 120,889.10 : x
  2. Step 2: Convert to fraction form
    211,519.73/291,912.08 = 120,889.10/x
  3. Step 3: Cross multiply
    211,519.73x = 291,912.08 × 120,889.10
  4. Step 4: Simplify right side
    211,519.73x = 35,288,986,566.32
  5. Step 5: Solve for x
    x = 35,288,986,566.32/211,519.73
  6. Step 6: Final answer
    x = 166,835.44

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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.