Home / 154,138.50-231,229.77-47,531.46

Finding the Fourth Proportional to 154,138.50, 231,229.77 and 47,531.46

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Solution

The fourth proportional to 154,138.50, 231,229.77 and 47,531.46 is: 71,303.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,138.50 : 231,229.77 = 47,531.46 : x
  2. Step 2: Convert to fraction form
    154,138.50/231,229.77 = 47,531.46/x
  3. Step 3: Cross multiply
    154,138.50x = 231,229.77 × 47,531.46
  4. Step 4: Simplify right side
    154,138.50x = 10,990,688,563.56
  5. Step 5: Solve for x
    x = 10,990,688,563.56/154,138.50
  6. Step 6: Final answer
    x = 71,303.98

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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.