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Finding the Fourth Proportional to 100,003.40, 150,005.10 and 26,131.40

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Solution

The fourth proportional to 100,003.40, 150,005.10 and 26,131.40 is: 39,197.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,003.40 : 150,005.10 = 26,131.40 : x
  2. Step 2: Convert to fraction form
    100,003.40/150,005.10 = 26,131.40/x
  3. Step 3: Cross multiply
    100,003.40x = 150,005.10 × 26,131.40
  4. Step 4: Simplify right side
    100,003.40x = 3,919,843,270.14
  5. Step 5: Solve for x
    x = 3,919,843,270.14/100,003.40
  6. Step 6: Final answer
    x = 39,197.10

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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.