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Finding the Fourth Proportional to 100,395.42, 150,561.68 and 36,345.48

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Solution

The fourth proportional to 100,395.42, 150,561.68 and 36,345.48 is: 54,506.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,395.42 : 150,561.68 = 36,345.48 : x
  2. Step 2: Convert to fraction form
    100,395.42/150,561.68 = 36,345.48/x
  3. Step 3: Cross multiply
    100,395.42x = 150,561.68 × 36,345.48
  4. Step 4: Simplify right side
    100,395.42x = 5,472,236,529.21
  5. Step 5: Solve for x
    x = 5,472,236,529.21/100,395.42
  6. Step 6: Final answer
    x = 54,506.83

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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.