Home / 120,619.44-180,876.36-49,493.28

Finding the Fourth Proportional to 120,619.44, 180,876.36 and 49,493.28

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Solution

The fourth proportional to 120,619.44, 180,876.36 and 49,493.28 is: 74,218.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,619.44 : 180,876.36 = 49,493.28 : x
  2. Step 2: Convert to fraction form
    120,619.44/180,876.36 = 49,493.28/x
  3. Step 3: Cross multiply
    120,619.44x = 180,876.36 × 49,493.28
  4. Step 4: Simplify right side
    120,619.44x = 8,952,164,330.86
  5. Step 5: Solve for x
    x = 8,952,164,330.86/120,619.44
  6. Step 6: Final answer
    x = 74,218.25

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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.