Home / 137,726.55-206,589.83-90,487.35

Finding the Fourth Proportional to 137,726.55, 206,589.83 and 90,487.35

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Solution

The fourth proportional to 137,726.55, 206,589.83 and 90,487.35 is: 135,731.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,726.55 : 206,589.83 = 90,487.35 : x
  2. Step 2: Convert to fraction form
    137,726.55/206,589.83 = 90,487.35/x
  3. Step 3: Cross multiply
    137,726.55x = 206,589.83 × 90,487.35
  4. Step 4: Simplify right side
    137,726.55x = 18,693,765,801.21
  5. Step 5: Solve for x
    x = 18,693,765,801.21/137,726.55
  6. Step 6: Final answer
    x = 135,731.03

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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.