Home / 173,115.86-258,990.55-131,116.95

Finding the Fourth Proportional to 173,115.86, 258,990.55 and 131,116.95

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Solution

The fourth proportional to 173,115.86, 258,990.55 and 131,116.95 is: 196,157.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,115.86 : 258,990.55 = 131,116.95 : x
  2. Step 2: Convert to fraction form
    173,115.86/258,990.55 = 131,116.95/x
  3. Step 3: Cross multiply
    173,115.86x = 258,990.55 × 131,116.95
  4. Step 4: Simplify right side
    173,115.86x = 33,958,050,667.03
  5. Step 5: Solve for x
    x = 33,958,050,667.03/173,115.86
  6. Step 6: Final answer
    x = 196,157.95

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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.