Home / 120,606.48-180,972-54,092.88

Finding the Fourth Proportional to 120,606.48, 180,972 and 54,092.88

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Solution

The fourth proportional to 120,606.48, 180,972 and 54,092.88 is: 81,167.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,606.48 : 180,972 = 54,092.88 : x
  2. Step 2: Convert to fraction form
    120,606.48/180,972 = 54,092.88/x
  3. Step 3: Cross multiply
    120,606.48x = 180,972 × 54,092.88
  4. Step 4: Simplify right side
    120,606.48x = 9,789,296,679.36
  5. Step 5: Solve for x
    x = 9,789,296,679.36/120,606.48
  6. Step 6: Final answer
    x = 81,167.25

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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.