Home / 154,474.64-231,704.28-90,468.76

Finding the Fourth Proportional to 154,474.64, 231,704.28 and 90,468.76

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Solution

The fourth proportional to 154,474.64, 231,704.28 and 90,468.76 is: 135,698.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,474.64 : 231,704.28 = 90,468.76 : x
  2. Step 2: Convert to fraction form
    154,474.64/231,704.28 = 90,468.76/x
  3. Step 3: Cross multiply
    154,474.64x = 231,704.28 × 90,468.76
  4. Step 4: Simplify right side
    154,474.64x = 20,961,998,155.35
  5. Step 5: Solve for x
    x = 20,961,998,155.35/154,474.64
  6. Step 6: Final answer
    x = 135,698.63

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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.