Home / 128,540.02-192,807.96-35,045.77

Finding the Fourth Proportional to 128,540.02, 192,807.96 and 35,045.77

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Solution

The fourth proportional to 128,540.02, 192,807.96 and 35,045.77 is: 52,568.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,540.02 : 192,807.96 = 35,045.77 : x
  2. Step 2: Convert to fraction form
    128,540.02/192,807.96 = 35,045.77/x
  3. Step 3: Cross multiply
    128,540.02x = 192,807.96 × 35,045.77
  4. Step 4: Simplify right side
    128,540.02x = 6,757,103,420.33
  5. Step 5: Solve for x
    x = 6,757,103,420.33/128,540.02
  6. Step 6: Final answer
    x = 52,568.09

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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.