Home / 128,584.04-192,705.94-93,164.36

Finding the Fourth Proportional to 128,584.04, 192,705.94 and 93,164.36

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Solution

The fourth proportional to 128,584.04, 192,705.94 and 93,164.36 is: 139,623.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,584.04 : 192,705.94 = 93,164.36 : x
  2. Step 2: Convert to fraction form
    128,584.04/192,705.94 = 93,164.36/x
  3. Step 3: Cross multiply
    128,584.04x = 192,705.94 × 93,164.36
  4. Step 4: Simplify right side
    128,584.04x = 17,953,325,568.30
  5. Step 5: Solve for x
    x = 17,953,325,568.30/128,584.04
  6. Step 6: Final answer
    x = 139,623.28

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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.