Home / 120,371.43-180,535.26-36,111.78

Finding the Fourth Proportional to 120,371.43, 180,535.26 and 36,111.78

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Solution

The fourth proportional to 120,371.43, 180,535.26 and 36,111.78 is: 54,161.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,371.43 : 180,535.26 = 36,111.78 : x
  2. Step 2: Convert to fraction form
    120,371.43/180,535.26 = 36,111.78/x
  3. Step 3: Cross multiply
    120,371.43x = 180,535.26 × 36,111.78
  4. Step 4: Simplify right side
    120,371.43x = 6,519,449,591.36
  5. Step 5: Solve for x
    x = 6,519,449,591.36/120,371.43
  6. Step 6: Final answer
    x = 54,161.10

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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.