Home / 120,087.09-180,033.44-50,018.85

Finding the Fourth Proportional to 120,087.09, 180,033.44 and 50,018.85

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Solution

The fourth proportional to 120,087.09, 180,033.44 and 50,018.85 is: 74,987.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,087.09 : 180,033.44 = 50,018.85 : x
  2. Step 2: Convert to fraction form
    120,087.09/180,033.44 = 50,018.85/x
  3. Step 3: Cross multiply
    120,087.09x = 180,033.44 × 50,018.85
  4. Step 4: Simplify right side
    120,087.09x = 9,005,065,380.25
  5. Step 5: Solve for x
    x = 9,005,065,380.25/120,087.09
  6. Step 6: Final answer
    x = 74,987.79

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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.