Home / 109,108.26-163,589.90-42,554.61

Finding the Fourth Proportional to 109,108.26, 163,589.90 and 42,554.61

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Solution

The fourth proportional to 109,108.26, 163,589.90 and 42,554.61 is: 63,803.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,108.26 : 163,589.90 = 42,554.61 : x
  2. Step 2: Convert to fraction form
    109,108.26/163,589.90 = 42,554.61/x
  3. Step 3: Cross multiply
    109,108.26x = 163,589.90 × 42,554.61
  4. Step 4: Simplify right side
    109,108.26x = 6,961,504,181.67
  5. Step 5: Solve for x
    x = 6,961,504,181.67/109,108.26
  6. Step 6: Final answer
    x = 63,803.64

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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.