Home / 120,959.10-166,945.37-69,964.74

Finding the Fourth Proportional to 120,959.10, 166,945.37 and 69,964.74

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Solution

The fourth proportional to 120,959.10, 166,945.37 and 69,964.74 is: 96,563.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,959.10 : 166,945.37 = 69,964.74 : x
  2. Step 2: Convert to fraction form
    120,959.10/166,945.37 = 69,964.74/x
  3. Step 3: Cross multiply
    120,959.10x = 166,945.37 × 69,964.74
  4. Step 4: Simplify right side
    120,959.10x = 11,680,289,056.43
  5. Step 5: Solve for x
    x = 11,680,289,056.43/120,959.10
  6. Step 6: Final answer
    x = 96,563.95

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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.