Home / 214,929.90-321,957.45-109,808.10

Finding the Fourth Proportional to 214,929.90, 321,957.45 and 109,808.10

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Solution

The fourth proportional to 214,929.90, 321,957.45 and 109,808.10 is: 164,488.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,929.90 : 321,957.45 = 109,808.10 : x
  2. Step 2: Convert to fraction form
    214,929.90/321,957.45 = 109,808.10/x
  3. Step 3: Cross multiply
    214,929.90x = 321,957.45 × 109,808.10
  4. Step 4: Simplify right side
    214,929.90x = 35,353,535,865.35
  5. Step 5: Solve for x
    x = 35,353,535,865.35/214,929.90
  6. Step 6: Final answer
    x = 164,488.68

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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.