Home / 211,518.14-317,074.91-78,362.64

Finding the Fourth Proportional to 211,518.14, 317,074.91 and 78,362.64

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Solution

The fourth proportional to 211,518.14, 317,074.91 and 78,362.64 is: 117,469.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,518.14 : 317,074.91 = 78,362.64 : x
  2. Step 2: Convert to fraction form
    211,518.14/317,074.91 = 78,362.64/x
  3. Step 3: Cross multiply
    211,518.14x = 317,074.91 × 78,362.64
  4. Step 4: Simplify right side
    211,518.14x = 24,846,826,633.55
  5. Step 5: Solve for x
    x = 24,846,826,633.55/211,518.14
  6. Step 6: Final answer
    x = 117,469.01

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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.