Home / 120,731.72-166,601.88-67,016.70

Finding the Fourth Proportional to 120,731.72, 166,601.88 and 67,016.70

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Solution

The fourth proportional to 120,731.72, 166,601.88 and 67,016.70 is: 92,478.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,731.72 : 166,601.88 = 67,016.70 : x
  2. Step 2: Convert to fraction form
    120,731.72/166,601.88 = 67,016.70/x
  3. Step 3: Cross multiply
    120,731.72x = 166,601.88 × 67,016.70
  4. Step 4: Simplify right side
    120,731.72x = 11,165,108,211.40
  5. Step 5: Solve for x
    x = 11,165,108,211.40/120,731.72
  6. Step 6: Final answer
    x = 92,478.67

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1.5x scale

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.