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Finding the Fourth Proportional to 164,007.20, 245,751.60 and 137,568.80

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Solution

The fourth proportional to 164,007.20, 245,751.60 and 137,568.80 is: 206,135.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,007.20 : 245,751.60 = 137,568.80 : x
  2. Step 2: Convert to fraction form
    164,007.20/245,751.60 = 137,568.80/x
  3. Step 3: Cross multiply
    164,007.20x = 245,751.60 × 137,568.80
  4. Step 4: Simplify right side
    164,007.20x = 33,807,752,710.08
  5. Step 5: Solve for x
    x = 33,807,752,710.08/164,007.20
  6. Step 6: Final answer
    x = 206,135.78

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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.