Home / 214,405.26-321,632.85-81,385.02

Finding the Fourth Proportional to 214,405.26, 321,632.85 and 81,385.02

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Solution

The fourth proportional to 214,405.26, 321,632.85 and 81,385.02 is: 122,087.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,405.26 : 321,632.85 = 81,385.02 : x
  2. Step 2: Convert to fraction form
    214,405.26/321,632.85 = 81,385.02/x
  3. Step 3: Cross multiply
    214,405.26x = 321,632.85 × 81,385.02
  4. Step 4: Simplify right side
    214,405.26x = 26,176,095,929.91
  5. Step 5: Solve for x
    x = 26,176,095,929.91/214,405.26
  6. Step 6: Final answer
    x = 122,087.00

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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.