Home / 120,382.30-166,127.25-69,394.75

Finding the Fourth Proportional to 120,382.30, 166,127.25 and 69,394.75

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Solution

The fourth proportional to 120,382.30, 166,127.25 and 69,394.75 is: 95,764.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,382.30 : 166,127.25 = 69,394.75 : x
  2. Step 2: Convert to fraction form
    120,382.30/166,127.25 = 69,394.75/x
  3. Step 3: Cross multiply
    120,382.30x = 166,127.25 × 69,394.75
  4. Step 4: Simplify right side
    120,382.30x = 11,528,358,826.85
  5. Step 5: Solve for x
    x = 11,528,358,826.85/120,382.30
  6. Step 6: Final answer
    x = 95,764.57

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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.