Home / 214,389.61-321,632.93-72,231.02

Finding the Fourth Proportional to 214,389.61, 321,632.93 and 72,231.02

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Solution

The fourth proportional to 214,389.61, 321,632.93 and 72,231.02 is: 108,362.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,389.61 : 321,632.93 = 72,231.02 : x
  2. Step 2: Convert to fraction form
    214,389.61/321,632.93 = 72,231.02/x
  3. Step 3: Cross multiply
    214,389.61x = 321,632.93 × 72,231.02
  4. Step 4: Simplify right side
    214,389.61x = 23,231,874,107.16
  5. Step 5: Solve for x
    x = 23,231,874,107.16/214,389.61
  6. Step 6: Final answer
    x = 108,362.87

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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.