Home / 107,722.40-161,199.60-68,298.40

Finding the Fourth Proportional to 107,722.40, 161,199.60 and 68,298.40

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Solution

The fourth proportional to 107,722.40, 161,199.60 and 68,298.40 is: 102,204.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,722.40 : 161,199.60 = 68,298.40 : x
  2. Step 2: Convert to fraction form
    107,722.40/161,199.60 = 68,298.40/x
  3. Step 3: Cross multiply
    107,722.40x = 161,199.60 × 68,298.40
  4. Step 4: Simplify right side
    107,722.40x = 11,009,674,760.64
  5. Step 5: Solve for x
    x = 11,009,674,760.64/107,722.40
  6. Step 6: Final answer
    x = 102,204.14

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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.