Home / 137,357.56-206,112.89-74,176.35

Finding the Fourth Proportional to 137,357.56, 206,112.89 and 74,176.35

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Solution

The fourth proportional to 137,357.56, 206,112.89 and 74,176.35 is: 111,305.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,357.56 : 206,112.89 = 74,176.35 : x
  2. Step 2: Convert to fraction form
    137,357.56/206,112.89 = 74,176.35/x
  3. Step 3: Cross multiply
    137,357.56x = 206,112.89 × 74,176.35
  4. Step 4: Simplify right side
    137,357.56x = 15,288,701,868.15
  5. Step 5: Solve for x
    x = 15,288,701,868.15/137,357.56
  6. Step 6: Final answer
    x = 111,305.86

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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.