Home / 214,535.79-321,579.18-72,331.92

Finding the Fourth Proportional to 214,535.79, 321,579.18 and 72,331.92

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Solution

The fourth proportional to 214,535.79, 321,579.18 and 72,331.92 is: 108,422.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,535.79 : 321,579.18 = 72,331.92 : x
  2. Step 2: Convert to fraction form
    214,535.79/321,579.18 = 72,331.92/x
  3. Step 3: Cross multiply
    214,535.79x = 321,579.18 × 72,331.92
  4. Step 4: Simplify right side
    214,535.79x = 23,260,439,521.43
  5. Step 5: Solve for x
    x = 23,260,439,521.43/214,535.79
  6. Step 6: Final answer
    x = 108,422.19

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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.