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Finding the Fourth Proportional to 135,447.93, 203,369.13 and 100,018.53

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Solution

The fourth proportional to 135,447.93, 203,369.13 and 100,018.53 is: 150,173.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,447.93 : 203,369.13 = 100,018.53 : x
  2. Step 2: Convert to fraction form
    135,447.93/203,369.13 = 100,018.53/x
  3. Step 3: Cross multiply
    135,447.93x = 203,369.13 × 100,018.53
  4. Step 4: Simplify right side
    135,447.93x = 20,340,681,429.98
  5. Step 5: Solve for x
    x = 20,340,681,429.98/135,447.93
  6. Step 6: Final answer
    x = 150,173.44

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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.