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Finding the Fourth Proportional to 100,550.80, 150,869.40 and 51,302.80

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Solution

The fourth proportional to 100,550.80, 150,869.40 and 51,302.80 is: 76,976.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,550.80 : 150,869.40 = 51,302.80 : x
  2. Step 2: Convert to fraction form
    100,550.80/150,869.40 = 51,302.80/x
  3. Step 3: Cross multiply
    100,550.80x = 150,869.40 × 51,302.80
  4. Step 4: Simplify right side
    100,550.80x = 7,740,022,654.32
  5. Step 5: Solve for x
    x = 7,740,022,654.32/100,550.80
  6. Step 6: Final answer
    x = 76,976.24

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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.