Home / 168,898.08-253,346.88-80,103.12

Finding the Fourth Proportional to 168,898.08, 253,346.88 and 80,103.12

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Solution

The fourth proportional to 168,898.08, 253,346.88 and 80,103.12 is: 120,154.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,898.08 : 253,346.88 = 80,103.12 : x
  2. Step 2: Convert to fraction form
    168,898.08/253,346.88 = 80,103.12/x
  3. Step 3: Cross multiply
    168,898.08x = 253,346.88 × 80,103.12
  4. Step 4: Simplify right side
    168,898.08x = 20,293,875,530.27
  5. Step 5: Solve for x
    x = 20,293,875,530.27/168,898.08
  6. Step 6: Final answer
    x = 120,154.57

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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.