Home / 154,743.52-231,804.24-80,716

Finding the Fourth Proportional to 154,743.52, 231,804.24 and 80,716

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Solution

The fourth proportional to 154,743.52, 231,804.24 and 80,716 is: 120,911.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,743.52 : 231,804.24 = 80,716 : x
  2. Step 2: Convert to fraction form
    154,743.52/231,804.24 = 80,716/x
  3. Step 3: Cross multiply
    154,743.52x = 231,804.24 × 80,716
  4. Step 4: Simplify right side
    154,743.52x = 18,710,311,035.84
  5. Step 5: Solve for x
    x = 18,710,311,035.84/154,743.52
  6. Step 6: Final answer
    x = 120,911.76

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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.