Home / 211,639.34-317,439.57-71,399.18

Finding the Fourth Proportional to 211,639.34, 317,439.57 and 71,399.18

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Solution

The fourth proportional to 211,639.34, 317,439.57 and 71,399.18 is: 107,092.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,639.34 : 317,439.57 = 71,399.18 : x
  2. Step 2: Convert to fraction form
    211,639.34/317,439.57 = 71,399.18/x
  3. Step 3: Cross multiply
    211,639.34x = 317,439.57 × 71,399.18
  4. Step 4: Simplify right side
    211,639.34x = 22,664,924,997.55
  5. Step 5: Solve for x
    x = 22,664,924,997.55/211,639.34
  6. Step 6: Final answer
    x = 107,092.21

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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.