Home / 120,275.91-180,418.46-53,716.59

Finding the Fourth Proportional to 120,275.91, 180,418.46 and 53,716.59

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Solution

The fourth proportional to 120,275.91, 180,418.46 and 53,716.59 is: 80,576.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,275.91 : 180,418.46 = 53,716.59 : x
  2. Step 2: Convert to fraction form
    120,275.91/180,418.46 = 53,716.59/x
  3. Step 3: Cross multiply
    120,275.91x = 180,418.46 × 53,716.59
  4. Step 4: Simplify right side
    120,275.91x = 9,691,464,175.67
  5. Step 5: Solve for x
    x = 9,691,464,175.67/120,275.91
  6. Step 6: Final answer
    x = 80,576.93

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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.