Home / 214,926.40-322,389.60-108,638.20

Finding the Fourth Proportional to 214,926.40, 322,389.60 and 108,638.20

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Solution

The fourth proportional to 214,926.40, 322,389.60 and 108,638.20 is: 162,957.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,926.40 : 322,389.60 = 108,638.20 : x
  2. Step 2: Convert to fraction form
    214,926.40/322,389.60 = 108,638.20/x
  3. Step 3: Cross multiply
    214,926.40x = 322,389.60 × 108,638.20
  4. Step 4: Simplify right side
    214,926.40x = 35,023,825,842.72
  5. Step 5: Solve for x
    x = 35,023,825,842.72/214,926.40
  6. Step 6: Final answer
    x = 162,957.30

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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.