Home / 107,725.40-161,204.10-68,301.40

Finding the Fourth Proportional to 107,725.40, 161,204.10 and 68,301.40

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Solution

The fourth proportional to 107,725.40, 161,204.10 and 68,301.40 is: 102,208.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,725.40 : 161,204.10 = 68,301.40 : x
  2. Step 2: Convert to fraction form
    107,725.40/161,204.10 = 68,301.40/x
  3. Step 3: Cross multiply
    107,725.40x = 161,204.10 × 68,301.40
  4. Step 4: Simplify right side
    107,725.40x = 11,010,465,715.74
  5. Step 5: Solve for x
    x = 11,010,465,715.74/107,725.40
  6. Step 6: Final answer
    x = 102,208.63

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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.