Home / 136,654.38-188,583.34-76,223.46

Finding the Fourth Proportional to 136,654.38, 188,583.34 and 76,223.46

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Solution

The fourth proportional to 136,654.38, 188,583.34 and 76,223.46 is: 105,188.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,654.38 : 188,583.34 = 76,223.46 : x
  2. Step 2: Convert to fraction form
    136,654.38/188,583.34 = 76,223.46/x
  3. Step 3: Cross multiply
    136,654.38x = 188,583.34 × 76,223.46
  4. Step 4: Simplify right side
    136,654.38x = 14,374,474,673.16
  5. Step 5: Solve for x
    x = 14,374,474,673.16/136,654.38
  6. Step 6: Final answer
    x = 105,188.54

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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.