Home / 214,299.54-321,554.52-86,210.64

Finding the Fourth Proportional to 214,299.54, 321,554.52 and 86,210.64

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Solution

The fourth proportional to 214,299.54, 321,554.52 and 86,210.64 is: 129,358.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,299.54 : 321,554.52 = 86,210.64 : x
  2. Step 2: Convert to fraction form
    214,299.54/321,554.52 = 86,210.64/x
  3. Step 3: Cross multiply
    214,299.54x = 321,554.52 × 86,210.64
  4. Step 4: Simplify right side
    214,299.54x = 27,721,420,964.09
  5. Step 5: Solve for x
    x = 27,721,420,964.09/214,299.54
  6. Step 6: Final answer
    x = 129,358.28

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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.