Home / 212,517.39-318,628.12-94,124.55

Finding the Fourth Proportional to 212,517.39, 318,628.12 and 94,124.55

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Solution

The fourth proportional to 212,517.39, 318,628.12 and 94,124.55 is: 141,121.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,517.39 : 318,628.12 = 94,124.55 : x
  2. Step 2: Convert to fraction form
    212,517.39/318,628.12 = 94,124.55/x
  3. Step 3: Cross multiply
    212,517.39x = 318,628.12 × 94,124.55
  4. Step 4: Simplify right side
    212,517.39x = 29,990,728,412.35
  5. Step 5: Solve for x
    x = 29,990,728,412.35/212,517.39
  6. Step 6: Final answer
    x = 141,121.29

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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.