Home / 120,723.44-181,262.89-67,519.66

Finding the Fourth Proportional to 120,723.44, 181,262.89 and 67,519.66

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Solution

The fourth proportional to 120,723.44, 181,262.89 and 67,519.66 is: 101,378.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,723.44 : 181,262.89 = 67,519.66 : x
  2. Step 2: Convert to fraction form
    120,723.44/181,262.89 = 67,519.66/x
  3. Step 3: Cross multiply
    120,723.44x = 181,262.89 × 67,519.66
  4. Step 4: Simplify right side
    120,723.44x = 12,238,808,703.42
  5. Step 5: Solve for x
    x = 12,238,808,703.42/120,723.44
  6. Step 6: Final answer
    x = 101,378.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.