Home / 120,439.26-166,206.06-66,727.62

Finding the Fourth Proportional to 120,439.26, 166,206.06 and 66,727.62

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Solution

The fourth proportional to 120,439.26, 166,206.06 and 66,727.62 is: 92,084.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,439.26 : 166,206.06 = 66,727.62 : x
  2. Step 2: Convert to fraction form
    120,439.26/166,206.06 = 66,727.62/x
  3. Step 3: Cross multiply
    120,439.26x = 166,206.06 × 66,727.62
  4. Step 4: Simplify right side
    120,439.26x = 11,090,534,813.38
  5. Step 5: Solve for x
    x = 11,090,534,813.38/120,439.26
  6. Step 6: Final answer
    x = 92,084.05

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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.