Home / 128,583.04-192,704.44-93,163.36

Finding the Fourth Proportional to 128,583.04, 192,704.44 and 93,163.36

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Solution

The fourth proportional to 128,583.04, 192,704.44 and 93,163.36 is: 139,621.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,583.04 : 192,704.44 = 93,163.36 : x
  2. Step 2: Convert to fraction form
    128,583.04/192,704.44 = 93,163.36/x
  3. Step 3: Cross multiply
    128,583.04x = 192,704.44 × 93,163.36
  4. Step 4: Simplify right side
    128,583.04x = 17,952,993,117.32
  5. Step 5: Solve for x
    x = 17,952,993,117.32/128,583.04
  6. Step 6: Final answer
    x = 139,621.78

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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.