Home / 120,496.13-166,284.68-66,784.62

Finding the Fourth Proportional to 120,496.13, 166,284.68 and 66,784.62

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Solution

The fourth proportional to 120,496.13, 166,284.68 and 66,784.62 is: 92,162.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,496.13 : 166,284.68 = 66,784.62 : x
  2. Step 2: Convert to fraction form
    120,496.13/166,284.68 = 66,784.62/x
  3. Step 3: Cross multiply
    120,496.13x = 166,284.68 × 66,784.62
  4. Step 4: Simplify right side
    120,496.13x = 11,105,258,167.24
  5. Step 5: Solve for x
    x = 11,105,258,167.24/120,496.13
  6. Step 6: Final answer
    x = 92,162.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.