Home / 156,088.38-215,403.49-84,469.89

Finding the Fourth Proportional to 156,088.38, 215,403.49 and 84,469.89

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Solution

The fourth proportional to 156,088.38, 215,403.49 and 84,469.89 is: 116,569.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,088.38 : 215,403.49 = 84,469.89 : x
  2. Step 2: Convert to fraction form
    156,088.38/215,403.49 = 84,469.89/x
  3. Step 3: Cross multiply
    156,088.38x = 215,403.49 × 84,469.89
  4. Step 4: Simplify right side
    156,088.38x = 18,195,109,105.92
  5. Step 5: Solve for x
    x = 18,195,109,105.92/156,088.38
  6. Step 6: Final answer
    x = 116,569.27

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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.