Home / 154,533.84-231,800.76-80,644.56

Finding the Fourth Proportional to 154,533.84, 231,800.76 and 80,644.56

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Solution

The fourth proportional to 154,533.84, 231,800.76 and 80,644.56 is: 120,966.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,533.84 : 231,800.76 = 80,644.56 : x
  2. Step 2: Convert to fraction form
    154,533.84/231,800.76 = 80,644.56/x
  3. Step 3: Cross multiply
    154,533.84x = 231,800.76 × 80,644.56
  4. Step 4: Simplify right side
    154,533.84x = 18,693,470,297.87
  5. Step 5: Solve for x
    x = 18,693,470,297.87/154,533.84
  6. Step 6: Final answer
    x = 120,966.84

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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.