Home / 120,675.66-166,530.27-66,959.76

Finding the Fourth Proportional to 120,675.66, 166,530.27 and 66,959.76

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Solution

The fourth proportional to 120,675.66, 166,530.27 and 66,959.76 is: 92,403.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,675.66 : 166,530.27 = 66,959.76 : x
  2. Step 2: Convert to fraction form
    120,675.66/166,530.27 = 66,959.76/x
  3. Step 3: Cross multiply
    120,675.66x = 166,530.27 × 66,959.76
  4. Step 4: Simplify right side
    120,675.66x = 11,150,826,911.94
  5. Step 5: Solve for x
    x = 11,150,826,911.94/120,675.66
  6. Step 6: Final answer
    x = 92,403.28

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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.