Home / 179,043.05-268,564.10-66,720.71

Finding the Fourth Proportional to 179,043.05, 268,564.10 and 66,720.71

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Solution

The fourth proportional to 179,043.05, 268,564.10 and 66,720.71 is: 100,080.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,043.05 : 268,564.10 = 66,720.71 : x
  2. Step 2: Convert to fraction form
    179,043.05/268,564.10 = 66,720.71/x
  3. Step 3: Cross multiply
    179,043.05x = 268,564.10 × 66,720.71
  4. Step 4: Simplify right side
    179,043.05x = 17,918,787,098.91
  5. Step 5: Solve for x
    x = 17,918,787,098.91/179,043.05
  6. Step 6: Final answer
    x = 100,080.89

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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.