Home / 154,205.96-231,123.84-79,361.42

Finding the Fourth Proportional to 154,205.96, 231,123.84 and 79,361.42

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Solution

The fourth proportional to 154,205.96, 231,123.84 and 79,361.42 is: 118,946.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,205.96 : 231,123.84 = 79,361.42 : x
  2. Step 2: Convert to fraction form
    154,205.96/231,123.84 = 79,361.42/x
  3. Step 3: Cross multiply
    154,205.96x = 231,123.84 × 79,361.42
  4. Step 4: Simplify right side
    154,205.96x = 18,342,316,138.25
  5. Step 5: Solve for x
    x = 18,342,316,138.25/154,205.96
  6. Step 6: Final answer
    x = 118,946.87

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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.