Home / 214,011.28-320,841.78-80,815.96

Finding the Fourth Proportional to 214,011.28, 320,841.78 and 80,815.96

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Solution

The fourth proportional to 214,011.28, 320,841.78 and 80,815.96 is: 121,157.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,011.28 : 320,841.78 = 80,815.96 : x
  2. Step 2: Convert to fraction form
    214,011.28/320,841.78 = 80,815.96/x
  3. Step 3: Cross multiply
    214,011.28x = 320,841.78 × 80,815.96
  4. Step 4: Simplify right side
    214,011.28x = 25,929,136,458.81
  5. Step 5: Solve for x
    x = 25,929,136,458.81/214,011.28
  6. Step 6: Final answer
    x = 121,157.80

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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.