Home / 212,636.07-318,843.39-100,286.13

Finding the Fourth Proportional to 212,636.07, 318,843.39 and 100,286.13

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Solution

The fourth proportional to 212,636.07, 318,843.39 and 100,286.13 is: 150,376.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,636.07 : 318,843.39 = 100,286.13 : x
  2. Step 2: Convert to fraction form
    212,636.07/318,843.39 = 100,286.13/x
  3. Step 3: Cross multiply
    212,636.07x = 318,843.39 × 100,286.13
  4. Step 4: Simplify right side
    212,636.07x = 31,975,569,659.18
  5. Step 5: Solve for x
    x = 31,975,569,659.18/212,636.07
  6. Step 6: Final answer
    x = 150,376.98

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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.