Home / 211,526.12-317,086.92-78,370.64

Finding the Fourth Proportional to 211,526.12, 317,086.92 and 78,370.64

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Solution

The fourth proportional to 211,526.12, 317,086.92 and 78,370.64 is: 117,481.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,526.12 : 317,086.92 = 78,370.64 : x
  2. Step 2: Convert to fraction form
    211,526.12/317,086.92 = 78,370.64/x
  3. Step 3: Cross multiply
    211,526.12x = 317,086.92 × 78,370.64
  4. Step 4: Simplify right side
    211,526.12x = 24,850,304,856.03
  5. Step 5: Solve for x
    x = 24,850,304,856.03/211,526.12
  6. Step 6: Final answer
    x = 117,481.02

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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.