Home / 214,427.63-321,518.39-81,222.93

Finding the Fourth Proportional to 214,427.63, 321,518.39 and 81,222.93

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Solution

The fourth proportional to 214,427.63, 321,518.39 and 81,222.93 is: 121,787.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,427.63 : 321,518.39 = 81,222.93 : x
  2. Step 2: Convert to fraction form
    214,427.63/321,518.39 = 81,222.93/x
  3. Step 3: Cross multiply
    214,427.63x = 321,518.39 × 81,222.93
  4. Step 4: Simplify right side
    214,427.63x = 26,114,665,278.57
  5. Step 5: Solve for x
    x = 26,114,665,278.57/214,427.63
  6. Step 6: Final answer
    x = 121,787.78

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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.