Home / 109,296.20-163,944.30-99,619.40

Finding the Fourth Proportional to 109,296.20, 163,944.30 and 99,619.40

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Solution

The fourth proportional to 109,296.20, 163,944.30 and 99,619.40 is: 149,429.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,296.20 : 163,944.30 = 99,619.40 : x
  2. Step 2: Convert to fraction form
    109,296.20/163,944.30 = 99,619.40/x
  3. Step 3: Cross multiply
    109,296.20x = 163,944.30 × 99,619.40
  4. Step 4: Simplify right side
    109,296.20x = 16,332,032,799.42
  5. Step 5: Solve for x
    x = 16,332,032,799.42/109,296.20
  6. Step 6: Final answer
    x = 149,429.10

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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.