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Finding the Fourth Proportional to 100,007.20, 150,010.80 and 26,135.20

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Solution

The fourth proportional to 100,007.20, 150,010.80 and 26,135.20 is: 39,202.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,007.20 : 150,010.80 = 26,135.20 : x
  2. Step 2: Convert to fraction form
    100,007.20/150,010.80 = 26,135.20/x
  3. Step 3: Cross multiply
    100,007.20x = 150,010.80 × 26,135.20
  4. Step 4: Simplify right side
    100,007.20x = 3,920,562,260.16
  5. Step 5: Solve for x
    x = 3,920,562,260.16/100,007.20
  6. Step 6: Final answer
    x = 39,202.80

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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.