Home / 154,311.18-231,485.27-54,450.74

Finding the Fourth Proportional to 154,311.18, 231,485.27 and 54,450.74

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Solution

The fourth proportional to 154,311.18, 231,485.27 and 54,450.74 is: 81,682.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,311.18 : 231,485.27 = 54,450.74 : x
  2. Step 2: Convert to fraction form
    154,311.18/231,485.27 = 54,450.74/x
  3. Step 3: Cross multiply
    154,311.18x = 231,485.27 × 54,450.74
  4. Step 4: Simplify right side
    154,311.18x = 12,604,542,820.92
  5. Step 5: Solve for x
    x = 12,604,542,820.92/154,311.18
  6. Step 6: Final answer
    x = 81,682.63

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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.