Home / 120,713.15-166,604.77-69,716.72

Finding the Fourth Proportional to 120,713.15, 166,604.77 and 69,716.72

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Solution

The fourth proportional to 120,713.15, 166,604.77 and 69,716.72 is: 96,220.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,713.15 : 166,604.77 = 69,716.72 : x
  2. Step 2: Convert to fraction form
    120,713.15/166,604.77 = 69,716.72/x
  3. Step 3: Cross multiply
    120,713.15x = 166,604.77 × 69,716.72
  4. Step 4: Simplify right side
    120,713.15x = 11,615,137,335.66
  5. Step 5: Solve for x
    x = 11,615,137,335.66/120,713.15
  6. Step 6: Final answer
    x = 96,220.98

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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.