Home / 136,431.90-186,912.60-131,318.39

Finding the Fourth Proportional to 136,431.90, 186,912.60 and 131,318.39

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Solution

The fourth proportional to 136,431.90, 186,912.60 and 131,318.39 is: 179,907.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,431.90 : 186,912.60 = 131,318.39 : x
  2. Step 2: Convert to fraction form
    136,431.90/186,912.60 = 131,318.39/x
  3. Step 3: Cross multiply
    136,431.90x = 186,912.60 × 131,318.39
  4. Step 4: Simplify right side
    136,431.90x = 24,545,061,096.45
  5. Step 5: Solve for x
    x = 24,545,061,096.45/136,431.90
  6. Step 6: Final answer
    x = 179,907.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.