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Finding the Fourth Proportional to 120,333.33, 166,072.28 and 69,347.88

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Solution

The fourth proportional to 120,333.33, 166,072.28 and 69,347.88 is: 95,707.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,333.33 : 166,072.28 = 69,347.88 : x
  2. Step 2: Convert to fraction form
    120,333.33/166,072.28 = 69,347.88/x
  3. Step 3: Cross multiply
    120,333.33x = 166,072.28 × 69,347.88
  4. Step 4: Simplify right side
    120,333.33x = 11,516,760,198.03
  5. Step 5: Solve for x
    x = 11,516,760,198.03/120,333.33
  6. Step 6: Final answer
    x = 95,707.15

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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.