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Finding the Fourth Proportional to 121,011.69, 166,996.23 and 67,295.53

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Solution

The fourth proportional to 121,011.69, 166,996.23 and 67,295.53 is: 92,867.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,011.69 : 166,996.23 = 67,295.53 : x
  2. Step 2: Convert to fraction form
    121,011.69/166,996.23 = 67,295.53/x
  3. Step 3: Cross multiply
    121,011.69x = 166,996.23 × 67,295.53
  4. Step 4: Simplify right side
    121,011.69x = 11,238,099,805.85
  5. Step 5: Solve for x
    x = 11,238,099,805.85/121,011.69
  6. Step 6: Final answer
    x = 92,867.89

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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.