Home / 154,105.42-231,176.55-65,347.39

Finding the Fourth Proportional to 154,105.42, 231,176.55 and 65,347.39

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Solution

The fourth proportional to 154,105.42, 231,176.55 and 65,347.39 is: 98,028.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,105.42 : 231,176.55 = 65,347.39 : x
  2. Step 2: Convert to fraction form
    154,105.42/231,176.55 = 65,347.39/x
  3. Step 3: Cross multiply
    154,105.42x = 231,176.55 × 65,347.39
  4. Step 4: Simplify right side
    154,105.42x = 15,106,784,171.70
  5. Step 5: Solve for x
    x = 15,106,784,171.70/154,105.42
  6. Step 6: Final answer
    x = 98,028.90

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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.