Home / 120,333.88-166,062.06-66,619.78

Finding the Fourth Proportional to 120,333.88, 166,062.06 and 66,619.78

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Solution

The fourth proportional to 120,333.88, 166,062.06 and 66,619.78 is: 91,936.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,333.88 : 166,062.06 = 66,619.78 : x
  2. Step 2: Convert to fraction form
    120,333.88/166,062.06 = 66,619.78/x
  3. Step 3: Cross multiply
    120,333.88x = 166,062.06 × 66,619.78
  4. Step 4: Simplify right side
    120,333.88x = 11,063,017,903.55
  5. Step 5: Solve for x
    x = 11,063,017,903.55/120,333.88
  6. Step 6: Final answer
    x = 91,936.02

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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.