Home / 120,627.87-166,473.53-66,918.79

Finding the Fourth Proportional to 120,627.87, 166,473.53 and 66,918.79

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Solution

The fourth proportional to 120,627.87, 166,473.53 and 66,918.79 is: 92,351.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,627.87 : 166,473.53 = 66,918.79 : x
  2. Step 2: Convert to fraction form
    120,627.87/166,473.53 = 66,918.79/x
  3. Step 3: Cross multiply
    120,627.87x = 166,473.53 × 66,918.79
  4. Step 4: Simplify right side
    120,627.87x = 11,140,207,194.63
  5. Step 5: Solve for x
    x = 11,140,207,194.63/120,627.87
  6. Step 6: Final answer
    x = 92,351.85

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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.