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Finding the Fourth Proportional to 133,521.60, 200,023.20 and 74,251.20

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Solution

The fourth proportional to 133,521.60, 200,023.20 and 74,251.20 is: 111,232.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,521.60 : 200,023.20 = 74,251.20 : x
  2. Step 2: Convert to fraction form
    133,521.60/200,023.20 = 74,251.20/x
  3. Step 3: Cross multiply
    133,521.60x = 200,023.20 × 74,251.20
  4. Step 4: Simplify right side
    133,521.60x = 14,851,962,627.84
  5. Step 5: Solve for x
    x = 14,851,962,627.84/133,521.60
  6. Step 6: Final answer
    x = 111,232.66

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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.