Home / 120,975.89-166,945.86-67,260.47

Finding the Fourth Proportional to 120,975.89, 166,945.86 and 67,260.47

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Solution

The fourth proportional to 120,975.89, 166,945.86 and 67,260.47 is: 92,818.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,975.89 : 166,945.86 = 67,260.47 : x
  2. Step 2: Convert to fraction form
    120,975.89/166,945.86 = 67,260.47/x
  3. Step 3: Cross multiply
    120,975.89x = 166,945.86 × 67,260.47
  4. Step 4: Simplify right side
    120,975.89x = 11,228,856,173.42
  5. Step 5: Solve for x
    x = 11,228,856,173.42/120,975.89
  6. Step 6: Final answer
    x = 92,818.96

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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.