Home / 212,452.12-318,444.90-72,105.04

Finding the Fourth Proportional to 212,452.12, 318,444.90 and 72,105.04

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Solution

The fourth proportional to 212,452.12, 318,444.90 and 72,105.04 is: 108,078.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,452.12 : 318,444.90 = 72,105.04 : x
  2. Step 2: Convert to fraction form
    212,452.12/318,444.90 = 72,105.04/x
  3. Step 3: Cross multiply
    212,452.12x = 318,444.90 × 72,105.04
  4. Step 4: Simplify right side
    212,452.12x = 22,961,482,252.30
  5. Step 5: Solve for x
    x = 22,961,482,252.30/212,452.12
  6. Step 6: Final answer
    x = 108,078.39

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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.