Home / 137,580.93-206,371.41-90,822.87

Finding the Fourth Proportional to 137,580.93, 206,371.41 and 90,822.87

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Solution

The fourth proportional to 137,580.93, 206,371.41 and 90,822.87 is: 136,234.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,580.93 : 206,371.41 = 90,822.87 : x
  2. Step 2: Convert to fraction form
    137,580.93/206,371.41 = 90,822.87/x
  3. Step 3: Cross multiply
    137,580.93x = 206,371.41 × 90,822.87
  4. Step 4: Simplify right side
    137,580.93x = 18,743,243,742.15
  5. Step 5: Solve for x
    x = 18,743,243,742.15/137,580.93
  6. Step 6: Final answer
    x = 136,234.31

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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.