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Finding the Fourth Proportional to 100,066.64, 150,100.21 and 40,902.30

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Solution

The fourth proportional to 100,066.64, 150,100.21 and 40,902.30 is: 61,353.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,066.64 : 150,100.21 = 40,902.30 : x
  2. Step 2: Convert to fraction form
    100,066.64/150,100.21 = 40,902.30/x
  3. Step 3: Cross multiply
    100,066.64x = 150,100.21 × 40,902.30
  4. Step 4: Simplify right side
    100,066.64x = 6,139,443,819.48
  5. Step 5: Solve for x
    x = 6,139,443,819.48/100,066.64
  6. Step 6: Final answer
    x = 61,353.55

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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.