Home / 213,719.04-321,160.14-113,949.72

Finding the Fourth Proportional to 213,719.04, 321,160.14 and 113,949.72

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Solution

The fourth proportional to 213,719.04, 321,160.14 and 113,949.72 is: 171,234.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,719.04 : 321,160.14 = 113,949.72 : x
  2. Step 2: Convert to fraction form
    213,719.04/321,160.14 = 113,949.72/x
  3. Step 3: Cross multiply
    213,719.04x = 321,160.14 × 113,949.72
  4. Step 4: Simplify right side
    213,719.04x = 36,596,108,028.16
  5. Step 5: Solve for x
    x = 36,596,108,028.16/213,719.04
  6. Step 6: Final answer
    x = 171,234.66

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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.