Home / 128,004.57-192,173.18-98,443.35

Finding the Fourth Proportional to 128,004.57, 192,173.18 and 98,443.35

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Solution

The fourth proportional to 128,004.57, 192,173.18 and 98,443.35 is: 147,792.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,004.57 : 192,173.18 = 98,443.35 : x
  2. Step 2: Convert to fraction form
    128,004.57/192,173.18 = 98,443.35/x
  3. Step 3: Cross multiply
    128,004.57x = 192,173.18 × 98,443.35
  4. Step 4: Simplify right side
    128,004.57x = 18,918,171,619.35
  5. Step 5: Solve for x
    x = 18,918,171,619.35/128,004.57
  6. Step 6: Final answer
    x = 147,792.94

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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.