Home / 214,338.08-321,513.12-81,193.28

Finding the Fourth Proportional to 214,338.08, 321,513.12 and 81,193.28

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Solution

The fourth proportional to 214,338.08, 321,513.12 and 81,193.28 is: 121,792.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,338.08 : 321,513.12 = 81,193.28 : x
  2. Step 2: Convert to fraction form
    214,338.08/321,513.12 = 81,193.28/x
  3. Step 3: Cross multiply
    214,338.08x = 321,513.12 × 81,193.28
  4. Step 4: Simplify right side
    214,338.08x = 26,104,704,775.83
  5. Step 5: Solve for x
    x = 26,104,704,775.83/214,338.08
  6. Step 6: Final answer
    x = 121,792.19

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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.