Home / 79,206.08-109,174.20-63,262.40

Finding the Fourth Proportional to 79,206.08, 109,174.20 and 63,262.40

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Solution

The fourth proportional to 79,206.08, 109,174.20 and 63,262.40 is: 87,198.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,206.08 : 109,174.20 = 63,262.40 : x
  2. Step 2: Convert to fraction form
    79,206.08/109,174.20 = 63,262.40/x
  3. Step 3: Cross multiply
    79,206.08x = 109,174.20 × 63,262.40
  4. Step 4: Simplify right side
    79,206.08x = 6,906,621,910.08
  5. Step 5: Solve for x
    x = 6,906,621,910.08/79,206.08
  6. Step 6: Final answer
    x = 87,198.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.