Home / 154,136.20-231,204.30-43,313.80

Finding the Fourth Proportional to 154,136.20, 231,204.30 and 43,313.80

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Solution

The fourth proportional to 154,136.20, 231,204.30 and 43,313.80 is: 64,970.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,136.20 : 231,204.30 = 43,313.80 : x
  2. Step 2: Convert to fraction form
    154,136.20/231,204.30 = 43,313.80/x
  3. Step 3: Cross multiply
    154,136.20x = 231,204.30 × 43,313.80
  4. Step 4: Simplify right side
    154,136.20x = 10,014,336,809.34
  5. Step 5: Solve for x
    x = 10,014,336,809.34/154,136.20
  6. Step 6: Final answer
    x = 64,970.70

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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.