Home / 120,500.46-166,286.07-66,784.14

Finding the Fourth Proportional to 120,500.46, 166,286.07 and 66,784.14

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Solution

The fourth proportional to 120,500.46, 166,286.07 and 66,784.14 is: 92,159.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,500.46 : 166,286.07 = 66,784.14 : x
  2. Step 2: Convert to fraction form
    120,500.46/166,286.07 = 66,784.14/x
  3. Step 3: Cross multiply
    120,500.46x = 166,286.07 × 66,784.14
  4. Step 4: Simplify right side
    120,500.46x = 11,105,272,178.93
  5. Step 5: Solve for x
    x = 11,105,272,178.93/120,500.46
  6. Step 6: Final answer
    x = 92,159.58

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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.