Home / 214,303.92-321,458.31-81,148.02

Finding the Fourth Proportional to 214,303.92, 321,458.31 and 81,148.02

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Solution

The fourth proportional to 214,303.92, 321,458.31 and 81,148.02 is: 121,722.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,303.92 : 321,458.31 = 81,148.02 : x
  2. Step 2: Convert to fraction form
    214,303.92/321,458.31 = 81,148.02/x
  3. Step 3: Cross multiply
    214,303.92x = 321,458.31 × 81,148.02
  4. Step 4: Simplify right side
    214,303.92x = 26,085,705,369.05
  5. Step 5: Solve for x
    x = 26,085,705,369.05/214,303.92
  6. Step 6: Final answer
    x = 121,722.95

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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.