Home / 156,105.99-215,426.26-84,486.01

Finding the Fourth Proportional to 156,105.99, 215,426.26 and 84,486.01

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Solution

The fourth proportional to 156,105.99, 215,426.26 and 84,486.01 is: 116,590.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,105.99 : 215,426.26 = 84,486.01 : x
  2. Step 2: Convert to fraction form
    156,105.99/215,426.26 = 84,486.01/x
  3. Step 3: Cross multiply
    156,105.99x = 215,426.26 × 84,486.01
  4. Step 4: Simplify right side
    156,105.99x = 18,200,504,406.84
  5. Step 5: Solve for x
    x = 18,200,504,406.84/156,105.99
  6. Step 6: Final answer
    x = 116,590.69

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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.