Home / 144,659.20-216,999.60-51,152.80

Finding the Fourth Proportional to 144,659.20, 216,999.60 and 51,152.80

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Solution

The fourth proportional to 144,659.20, 216,999.60 and 51,152.80 is: 76,733.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,659.20 : 216,999.60 = 51,152.80 : x
  2. Step 2: Convert to fraction form
    144,659.20/216,999.60 = 51,152.80/x
  3. Step 3: Cross multiply
    144,659.20x = 216,999.60 × 51,152.80
  4. Step 4: Simplify right side
    144,659.20x = 11,100,137,138.88
  5. Step 5: Solve for x
    x = 11,100,137,138.88/144,659.20
  6. Step 6: Final answer
    x = 76,733.02

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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.