Home / 128,226.52-192,357.96-39,487.24

Finding the Fourth Proportional to 128,226.52, 192,357.96 and 39,487.24

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Solution

The fourth proportional to 128,226.52, 192,357.96 and 39,487.24 is: 59,236.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,226.52 : 192,357.96 = 39,487.24 : x
  2. Step 2: Convert to fraction form
    128,226.52/192,357.96 = 39,487.24/x
  3. Step 3: Cross multiply
    128,226.52x = 192,357.96 × 39,487.24
  4. Step 4: Simplify right side
    128,226.52x = 7,595,684,932.43
  5. Step 5: Solve for x
    x = 7,595,684,932.43/128,226.52
  6. Step 6: Final answer
    x = 59,236.46

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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.