Home / 192,636.60-289,398.24-136,615.20

Finding the Fourth Proportional to 192,636.60, 289,398.24 and 136,615.20

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Solution

The fourth proportional to 192,636.60, 289,398.24 and 136,615.20 is: 205,237.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,636.60 : 289,398.24 = 136,615.20 : x
  2. Step 2: Convert to fraction form
    192,636.60/289,398.24 = 136,615.20/x
  3. Step 3: Cross multiply
    192,636.60x = 289,398.24 × 136,615.20
  4. Step 4: Simplify right side
    192,636.60x = 39,536,198,437.25
  5. Step 5: Solve for x
    x = 39,536,198,437.25/192,636.60
  6. Step 6: Final answer
    x = 205,237.21

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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.