Home / 128,245.02-192,370.77-60,761.22

Finding the Fourth Proportional to 128,245.02, 192,370.77 and 60,761.22

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Solution

The fourth proportional to 128,245.02, 192,370.77 and 60,761.22 is: 91,143.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,245.02 : 192,370.77 = 60,761.22 : x
  2. Step 2: Convert to fraction form
    128,245.02/192,370.77 = 60,761.22/x
  3. Step 3: Cross multiply
    128,245.02x = 192,370.77 × 60,761.22
  4. Step 4: Simplify right side
    128,245.02x = 11,688,682,677.54
  5. Step 5: Solve for x
    x = 11,688,682,677.54/128,245.02
  6. Step 6: Final answer
    x = 91,143.37

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1.5x scale

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.