Home / 214,267.78-321,429.12-72,052.12

Finding the Fourth Proportional to 214,267.78, 321,429.12 and 72,052.12

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Solution

The fourth proportional to 214,267.78, 321,429.12 and 72,052.12 is: 108,087.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,267.78 : 321,429.12 = 72,052.12 : x
  2. Step 2: Convert to fraction form
    214,267.78/321,429.12 = 72,052.12/x
  3. Step 3: Cross multiply
    214,267.78x = 321,429.12 × 72,052.12
  4. Step 4: Simplify right side
    214,267.78x = 23,159,649,525.73
  5. Step 5: Solve for x
    x = 23,159,649,525.73/214,267.78
  6. Step 6: Final answer
    x = 108,087.41

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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.