Home / 214,315.60-321,351.90-81,200.20

Finding the Fourth Proportional to 214,315.60, 321,351.90 and 81,200.20

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Solution

The fourth proportional to 214,315.60, 321,351.90 and 81,200.20 is: 121,754.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,315.60 : 321,351.90 = 81,200.20 : x
  2. Step 2: Convert to fraction form
    214,315.60/321,351.90 = 81,200.20/x
  3. Step 3: Cross multiply
    214,315.60x = 321,351.90 × 81,200.20
  4. Step 4: Simplify right side
    214,315.60x = 26,093,838,550.38
  5. Step 5: Solve for x
    x = 26,093,838,550.38/214,315.60
  6. Step 6: Final answer
    x = 121,754.27

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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.