Home / 120,266.78-180,370.98-50,107.82

Finding the Fourth Proportional to 120,266.78, 180,370.98 and 50,107.82

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Solution

The fourth proportional to 120,266.78, 180,370.98 and 50,107.82 is: 75,149.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,266.78 : 180,370.98 = 50,107.82 : x
  2. Step 2: Convert to fraction form
    120,266.78/180,370.98 = 50,107.82/x
  3. Step 3: Cross multiply
    120,266.78x = 180,370.98 × 50,107.82
  4. Step 4: Simplify right side
    120,266.78x = 9,037,996,599.06
  5. Step 5: Solve for x
    x = 9,037,996,599.06/120,266.78
  6. Step 6: Final answer
    x = 75,149.57

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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.