Home / 128,505.46-192,682.44-60,041.28

Finding the Fourth Proportional to 128,505.46, 192,682.44 and 60,041.28

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Solution

The fourth proportional to 128,505.46, 192,682.44 and 60,041.28 is: 90,026.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,505.46 : 192,682.44 = 60,041.28 : x
  2. Step 2: Convert to fraction form
    128,505.46/192,682.44 = 60,041.28/x
  3. Step 3: Cross multiply
    128,505.46x = 192,682.44 × 60,041.28
  4. Step 4: Simplify right side
    128,505.46x = 11,568,900,331.12
  5. Step 5: Solve for x
    x = 11,568,900,331.12/128,505.46
  6. Step 6: Final answer
    x = 90,026.53

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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.