Home / 120,491.03-166,277.62-66,784.12

Finding the Fourth Proportional to 120,491.03, 166,277.62 and 66,784.12

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Solution

The fourth proportional to 120,491.03, 166,277.62 and 66,784.12 is: 92,162.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,491.03 : 166,277.62 = 66,784.12 : x
  2. Step 2: Convert to fraction form
    120,491.03/166,277.62 = 66,784.12/x
  3. Step 3: Cross multiply
    120,491.03x = 166,277.62 × 66,784.12
  4. Step 4: Simplify right side
    120,491.03x = 11,104,704,527.39
  5. Step 5: Solve for x
    x = 11,104,704,527.39/120,491.03
  6. Step 6: Final answer
    x = 92,162.08

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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.