Home / 109,339.20-164,073.60-72,006.30

Finding the Fourth Proportional to 109,339.20, 164,073.60 and 72,006.30

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Solution

The fourth proportional to 109,339.20, 164,073.60 and 72,006.30 is: 108,052.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,339.20 : 164,073.60 = 72,006.30 : x
  2. Step 2: Convert to fraction form
    109,339.20/164,073.60 = 72,006.30/x
  3. Step 3: Cross multiply
    109,339.20x = 164,073.60 × 72,006.30
  4. Step 4: Simplify right side
    109,339.20x = 11,814,332,863.68
  5. Step 5: Solve for x
    x = 11,814,332,863.68/109,339.20
  6. Step 6: Final answer
    x = 108,052.12

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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.