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Finding the Fourth Proportional to 100,087.35, 150,131.12 and 40,923.02

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Solution

The fourth proportional to 100,087.35, 150,131.12 and 40,923.02 is: 61,384.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,087.35 : 150,131.12 = 40,923.02 : x
  2. Step 2: Convert to fraction form
    100,087.35/150,131.12 = 40,923.02/x
  3. Step 3: Cross multiply
    100,087.35x = 150,131.12 × 40,923.02
  4. Step 4: Simplify right side
    100,087.35x = 6,143,817,871.11
  5. Step 5: Solve for x
    x = 6,143,817,871.11/100,087.35
  6. Step 6: Final answer
    x = 61,384.56

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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.