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Finding the Fourth Proportional to 100,245.43, 138,325.57 and 59,944.49

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Solution

The fourth proportional to 100,245.43, 138,325.57 and 59,944.49 is: 82,715.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,245.43 : 138,325.57 = 59,944.49 : x
  2. Step 2: Convert to fraction form
    100,245.43/138,325.57 = 59,944.49/x
  3. Step 3: Cross multiply
    100,245.43x = 138,325.57 × 59,944.49
  4. Step 4: Simplify right side
    100,245.43x = 8,291,855,762.03
  5. Step 5: Solve for x
    x = 8,291,855,762.03/100,245.43
  6. Step 6: Final answer
    x = 82,715.55

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.