Home / 214,264.54-321,437.42-86,190.62

Finding the Fourth Proportional to 214,264.54, 321,437.42 and 86,190.62

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Solution

The fourth proportional to 214,264.54, 321,437.42 and 86,190.62 is: 129,302.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,264.54 : 321,437.42 = 86,190.62 : x
  2. Step 2: Convert to fraction form
    214,264.54/321,437.42 = 86,190.62/x
  3. Step 3: Cross multiply
    214,264.54x = 321,437.42 × 86,190.62
  4. Step 4: Simplify right side
    214,264.54x = 27,704,890,090.05
  5. Step 5: Solve for x
    x = 27,704,890,090.05/214,264.54
  6. Step 6: Final answer
    x = 129,302.27

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1.5x scale

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.