Home / 120,014.64-180,049.44-41,128.80

Finding the Fourth Proportional to 120,014.64, 180,049.44 and 41,128.80

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Solution

The fourth proportional to 120,014.64, 180,049.44 and 41,128.80 is: 61,702.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,014.64 : 180,049.44 = 41,128.80 : x
  2. Step 2: Convert to fraction form
    120,014.64/180,049.44 = 41,128.80/x
  3. Step 3: Cross multiply
    120,014.64x = 180,049.44 × 41,128.80
  4. Step 4: Simplify right side
    120,014.64x = 7,405,217,407.87
  5. Step 5: Solve for x
    x = 7,405,217,407.87/120,014.64
  6. Step 6: Final answer
    x = 61,702.62

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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.