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Finding the Fourth Proportional to 144,010.60, 216,015.90 and 137,789.80

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Solution

The fourth proportional to 144,010.60, 216,015.90 and 137,789.80 is: 206,684.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,010.60 : 216,015.90 = 137,789.80 : x
  2. Step 2: Convert to fraction form
    144,010.60/216,015.90 = 137,789.80/x
  3. Step 3: Cross multiply
    144,010.60x = 216,015.90 × 137,789.80
  4. Step 4: Simplify right side
    144,010.60x = 29,764,787,657.82
  5. Step 5: Solve for x
    x = 29,764,787,657.82/144,010.60
  6. Step 6: Final answer
    x = 206,684.70

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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.