Home / 137,455.24-205,832.85-90,565.96

Finding the Fourth Proportional to 137,455.24, 205,832.85 and 90,565.96

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Solution

The fourth proportional to 137,455.24, 205,832.85 and 90,565.96 is: 135,618.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,455.24 : 205,832.85 = 90,565.96 : x
  2. Step 2: Convert to fraction form
    137,455.24/205,832.85 = 90,565.96/x
  3. Step 3: Cross multiply
    137,455.24x = 205,832.85 × 90,565.96
  4. Step 4: Simplify right side
    137,455.24x = 18,641,449,659.79
  5. Step 5: Solve for x
    x = 18,641,449,659.79/137,455.24
  6. Step 6: Final answer
    x = 135,618.33

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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.