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Finding the Fourth Proportional to 100,055.74, 150,082.82 and 40,849.89

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Solution

The fourth proportional to 100,055.74, 150,082.82 and 40,849.89 is: 61,274.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,055.74 : 150,082.82 = 40,849.89 : x
  2. Step 2: Convert to fraction form
    100,055.74/150,082.82 = 40,849.89/x
  3. Step 3: Cross multiply
    100,055.74x = 150,082.82 × 40,849.89
  4. Step 4: Simplify right side
    100,055.74x = 6,130,867,311.62
  5. Step 5: Solve for x
    x = 6,130,867,311.62/100,055.74
  6. Step 6: Final answer
    x = 61,274.52

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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.