Home / 154,396.96-231,571.75-42,086.21

Finding the Fourth Proportional to 154,396.96, 231,571.75 and 42,086.21

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Solution

The fourth proportional to 154,396.96, 231,571.75 and 42,086.21 is: 63,122.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,396.96 : 231,571.75 = 42,086.21 : x
  2. Step 2: Convert to fraction form
    154,396.96/231,571.75 = 42,086.21/x
  3. Step 3: Cross multiply
    154,396.96x = 231,571.75 × 42,086.21
  4. Step 4: Simplify right side
    154,396.96x = 9,745,977,300.57
  5. Step 5: Solve for x
    x = 9,745,977,300.57/154,396.96
  6. Step 6: Final answer
    x = 63,122.86

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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.