Home / 137,780.16-206,683.32-53,546.84

Finding the Fourth Proportional to 137,780.16, 206,683.32 and 53,546.84

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Solution

The fourth proportional to 137,780.16, 206,683.32 and 53,546.84 is: 80,325.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,780.16 : 206,683.32 = 53,546.84 : x
  2. Step 2: Convert to fraction form
    137,780.16/206,683.32 = 53,546.84/x
  3. Step 3: Cross multiply
    137,780.16x = 206,683.32 × 53,546.84
  4. Step 4: Simplify right side
    137,780.16x = 11,067,237,633.29
  5. Step 5: Solve for x
    x = 11,067,237,633.29/137,780.16
  6. Step 6: Final answer
    x = 80,325.34

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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.