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Finding the Fourth Proportional to 154,120.80, 231,027.60 and 70,869.60

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Solution

The fourth proportional to 154,120.80, 231,027.60 and 70,869.60 is: 106,233.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,120.80 : 231,027.60 = 70,869.60 : x
  2. Step 2: Convert to fraction form
    154,120.80/231,027.60 = 70,869.60/x
  3. Step 3: Cross multiply
    154,120.80x = 231,027.60 × 70,869.60
  4. Step 4: Simplify right side
    154,120.80x = 16,372,833,600.96
  5. Step 5: Solve for x
    x = 16,372,833,600.96/154,120.80
  6. Step 6: Final answer
    x = 106,233.77

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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.