Home / 120,435.78-180,653.66-50,276.82

Finding the Fourth Proportional to 120,435.78, 180,653.66 and 50,276.82

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Solution

The fourth proportional to 120,435.78, 180,653.66 and 50,276.82 is: 75,415.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,435.78 : 180,653.66 = 50,276.82 : x
  2. Step 2: Convert to fraction form
    120,435.78/180,653.66 = 50,276.82/x
  3. Step 3: Cross multiply
    120,435.78x = 180,653.66 × 50,276.82
  4. Step 4: Simplify right side
    120,435.78x = 9,082,691,546.16
  5. Step 5: Solve for x
    x = 9,082,691,546.16/120,435.78
  6. Step 6: Final answer
    x = 75,415.23

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1.5x scale

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.