Home / 120,371.55-180,556.89-36,131.36

Finding the Fourth Proportional to 120,371.55, 180,556.89 and 36,131.36

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Solution

The fourth proportional to 120,371.55, 180,556.89 and 36,131.36 is: 54,196.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,371.55 : 180,556.89 = 36,131.36 : x
  2. Step 2: Convert to fraction form
    120,371.55/180,556.89 = 36,131.36/x
  3. Step 3: Cross multiply
    120,371.55x = 180,556.89 × 36,131.36
  4. Step 4: Simplify right side
    120,371.55x = 6,523,765,090.29
  5. Step 5: Solve for x
    x = 6,523,765,090.29/120,371.55
  6. Step 6: Final answer
    x = 54,196.90

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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.