Home / 109,313.11-163,599.30-67,219.85

Finding the Fourth Proportional to 109,313.11, 163,599.30 and 67,219.85

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Solution

The fourth proportional to 109,313.11, 163,599.30 and 67,219.85 is: 100,602.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,313.11 : 163,599.30 = 67,219.85 : x
  2. Step 2: Convert to fraction form
    109,313.11/163,599.30 = 67,219.85/x
  3. Step 3: Cross multiply
    109,313.11x = 163,599.30 × 67,219.85
  4. Step 4: Simplify right side
    109,313.11x = 10,997,120,406.11
  5. Step 5: Solve for x
    x = 10,997,120,406.11/109,313.11
  6. Step 6: Final answer
    x = 100,602.03

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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.