Home / 120,966.72-181,387.60-54,349.92

Finding the Fourth Proportional to 120,966.72, 181,387.60 and 54,349.92

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Solution

The fourth proportional to 120,966.72, 181,387.60 and 54,349.92 is: 81,496.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,966.72 : 181,387.60 = 54,349.92 : x
  2. Step 2: Convert to fraction form
    120,966.72/181,387.60 = 54,349.92/x
  3. Step 3: Cross multiply
    120,966.72x = 181,387.60 × 54,349.92
  4. Step 4: Simplify right side
    120,966.72x = 9,858,401,548.99
  5. Step 5: Solve for x
    x = 9,858,401,548.99/120,966.72
  6. Step 6: Final answer
    x = 81,496.81

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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.