Home / 117,855.88-162,644.73-66,870.73

Finding the Fourth Proportional to 117,855.88, 162,644.73 and 66,870.73

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Solution

The fourth proportional to 117,855.88, 162,644.73 and 66,870.73 is: 92,283.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,855.88 : 162,644.73 = 66,870.73 : x
  2. Step 2: Convert to fraction form
    117,855.88/162,644.73 = 66,870.73/x
  3. Step 3: Cross multiply
    117,855.88x = 162,644.73 × 66,870.73
  4. Step 4: Simplify right side
    117,855.88x = 10,876,171,825.75
  5. Step 5: Solve for x
    x = 10,876,171,825.75/117,855.88
  6. Step 6: Final answer
    x = 92,283.66

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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.