Home / 211,832.50-317,713.72-69,679.54

Finding the Fourth Proportional to 211,832.50, 317,713.72 and 69,679.54

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Solution

The fourth proportional to 211,832.50, 317,713.72 and 69,679.54 is: 104,507.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,832.50 : 317,713.72 = 69,679.54 : x
  2. Step 2: Convert to fraction form
    211,832.50/317,713.72 = 69,679.54/x
  3. Step 3: Cross multiply
    211,832.50x = 317,713.72 × 69,679.54
  4. Step 4: Simplify right side
    211,832.50x = 22,138,145,861.29
  5. Step 5: Solve for x
    x = 22,138,145,861.29/211,832.50
  6. Step 6: Final answer
    x = 104,507.79

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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.