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Finding the Fourth Proportional to 109,311.52, 163,596.92 and 67,218.26

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Solution

The fourth proportional to 109,311.52, 163,596.92 and 67,218.26 is: 100,599.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,311.52 : 163,596.92 = 67,218.26 : x
  2. Step 2: Convert to fraction form
    109,311.52/163,596.92 = 67,218.26/x
  3. Step 3: Cross multiply
    109,311.52x = 163,596.92 × 67,218.26
  4. Step 4: Simplify right side
    109,311.52x = 10,996,700,303.76
  5. Step 5: Solve for x
    x = 10,996,700,303.76/109,311.52
  6. Step 6: Final answer
    x = 100,599.65

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1.5x scale

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.