Home / 120,339.38-166,069.66-66,625.28

Finding the Fourth Proportional to 120,339.38, 166,069.66 and 66,625.28

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Solution

The fourth proportional to 120,339.38, 166,069.66 and 66,625.28 is: 91,943.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,339.38 : 166,069.66 = 66,625.28 : x
  2. Step 2: Convert to fraction form
    120,339.38/166,069.66 = 66,625.28/x
  3. Step 3: Cross multiply
    120,339.38x = 166,069.66 × 66,625.28
  4. Step 4: Simplify right side
    120,339.38x = 11,064,437,597.00
  5. Step 5: Solve for x
    x = 11,064,437,597.00/120,339.38
  6. Step 6: Final answer
    x = 91,943.61

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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.