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Finding the Fourth Proportional to 100,014.76, 149,958.78 and 50,081.32

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Solution

The fourth proportional to 100,014.76, 149,958.78 and 50,081.32 is: 75,090.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,014.76 : 149,958.78 = 50,081.32 : x
  2. Step 2: Convert to fraction form
    100,014.76/149,958.78 = 50,081.32/x
  3. Step 3: Cross multiply
    100,014.76x = 149,958.78 × 50,081.32
  4. Step 4: Simplify right side
    100,014.76x = 7,510,133,647.99
  5. Step 5: Solve for x
    x = 7,510,133,647.99/100,014.76
  6. Step 6: Final answer
    x = 75,090.25

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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.