Home / 214,363.40-321,363.66-81,170.24

Finding the Fourth Proportional to 214,363.40, 321,363.66 and 81,170.24

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Solution

The fourth proportional to 214,363.40, 321,363.66 and 81,170.24 is: 121,686.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,363.40 : 321,363.66 = 81,170.24 : x
  2. Step 2: Convert to fraction form
    214,363.40/321,363.66 = 81,170.24/x
  3. Step 3: Cross multiply
    214,363.40x = 321,363.66 × 81,170.24
  4. Step 4: Simplify right side
    214,363.40x = 26,085,165,409.48
  5. Step 5: Solve for x
    x = 26,085,165,409.48/214,363.40
  6. Step 6: Final answer
    x = 121,686.66

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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.