Home / 120,678.06-166,527.72-66,959.67

Finding the Fourth Proportional to 120,678.06, 166,527.72 and 66,959.67

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Solution

The fourth proportional to 120,678.06, 166,527.72 and 66,959.67 is: 92,399.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,678.06 : 166,527.72 = 66,959.67 : x
  2. Step 2: Convert to fraction form
    120,678.06/166,527.72 = 66,959.67/x
  3. Step 3: Cross multiply
    120,678.06x = 166,527.72 × 66,959.67
  4. Step 4: Simplify right side
    120,678.06x = 11,150,641,177.05
  5. Step 5: Solve for x
    x = 11,150,641,177.05/120,678.06
  6. Step 6: Final answer
    x = 92,399.90

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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.