Home / 154,531.84-231,797.76-80,642.56

Finding the Fourth Proportional to 154,531.84, 231,797.76 and 80,642.56

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Solution

The fourth proportional to 154,531.84, 231,797.76 and 80,642.56 is: 120,963.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,531.84 : 231,797.76 = 80,642.56 : x
  2. Step 2: Convert to fraction form
    154,531.84/231,797.76 = 80,642.56/x
  3. Step 3: Cross multiply
    154,531.84x = 231,797.76 × 80,642.56
  4. Step 4: Simplify right side
    154,531.84x = 18,692,764,768.67
  5. Step 5: Solve for x
    x = 18,692,764,768.67/154,531.84
  6. Step 6: Final answer
    x = 120,963.84

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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.