Home / 136,683.03-188,622.66-76,253.68

Finding the Fourth Proportional to 136,683.03, 188,622.66 and 76,253.68

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Solution

The fourth proportional to 136,683.03, 188,622.66 and 76,253.68 is: 105,230.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,683.03 : 188,622.66 = 76,253.68 : x
  2. Step 2: Convert to fraction form
    136,683.03/188,622.66 = 76,253.68/x
  3. Step 3: Cross multiply
    136,683.03x = 188,622.66 × 76,253.68
  4. Step 4: Simplify right side
    136,683.03x = 14,383,171,956.39
  5. Step 5: Solve for x
    x = 14,383,171,956.39/136,683.03
  6. Step 6: Final answer
    x = 105,230.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.