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Finding the Fourth Proportional to 144,780.60, 216,998.10 and 60,540.60

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Solution

The fourth proportional to 144,780.60, 216,998.10 and 60,540.60 is: 90,738.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,780.60 : 216,998.10 = 60,540.60 : x
  2. Step 2: Convert to fraction form
    144,780.60/216,998.10 = 60,540.60/x
  3. Step 3: Cross multiply
    144,780.60x = 216,998.10 × 60,540.60
  4. Step 4: Simplify right side
    144,780.60x = 13,137,195,172.86
  5. Step 5: Solve for x
    x = 13,137,195,172.86/144,780.60
  6. Step 6: Final answer
    x = 90,738.64

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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.