Home / 109,234.42-163,641.73-66,991.34

Finding the Fourth Proportional to 109,234.42, 163,641.73 and 66,991.34

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Solution

The fourth proportional to 109,234.42, 163,641.73 and 66,991.34 is: 100,358.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,234.42 : 163,641.73 = 66,991.34 : x
  2. Step 2: Convert to fraction form
    109,234.42/163,641.73 = 66,991.34/x
  3. Step 3: Cross multiply
    109,234.42x = 163,641.73 × 66,991.34
  4. Step 4: Simplify right side
    109,234.42x = 10,962,579,014.24
  5. Step 5: Solve for x
    x = 10,962,579,014.24/109,234.42
  6. Step 6: Final answer
    x = 100,358.29

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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.