Home / 128,371.23-192,651.48-60,903.54

Finding the Fourth Proportional to 128,371.23, 192,651.48 and 60,903.54

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Solution

The fourth proportional to 128,371.23, 192,651.48 and 60,903.54 is: 91,400.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,371.23 : 192,651.48 = 60,903.54 : x
  2. Step 2: Convert to fraction form
    128,371.23/192,651.48 = 60,903.54/x
  3. Step 3: Cross multiply
    128,371.23x = 192,651.48 × 60,903.54
  4. Step 4: Simplify right side
    128,371.23x = 11,733,157,118.24
  5. Step 5: Solve for x
    x = 11,733,157,118.24/128,371.23
  6. Step 6: Final answer
    x = 91,400.21

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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.