Home / 211,380.90-317,114.55-71,153.70

Finding the Fourth Proportional to 211,380.90, 317,114.55 and 71,153.70

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Solution

The fourth proportional to 211,380.90, 317,114.55 and 71,153.70 is: 106,745.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,380.90 : 317,114.55 = 71,153.70 : x
  2. Step 2: Convert to fraction form
    211,380.90/317,114.55 = 71,153.70/x
  3. Step 3: Cross multiply
    211,380.90x = 317,114.55 × 71,153.70
  4. Step 4: Simplify right side
    211,380.90x = 22,563,873,556.34
  5. Step 5: Solve for x
    x = 22,563,873,556.34/211,380.90
  6. Step 6: Final answer
    x = 106,745.09

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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.