Home / 214,118.23-321,152.32-86,029.33

Finding the Fourth Proportional to 214,118.23, 321,152.32 and 86,029.33

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Solution

The fourth proportional to 214,118.23, 321,152.32 and 86,029.33 is: 129,033.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,118.23 : 321,152.32 = 86,029.33 : x
  2. Step 2: Convert to fraction form
    214,118.23/321,152.32 = 86,029.33/x
  3. Step 3: Cross multiply
    214,118.23x = 321,152.32 × 86,029.33
  4. Step 4: Simplify right side
    214,118.23x = 27,628,517,311.78
  5. Step 5: Solve for x
    x = 27,628,517,311.78/214,118.23
  6. Step 6: Final answer
    x = 129,033.93

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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.