Home / 156,434.49-215,863.62-96,007.68

Finding the Fourth Proportional to 156,434.49, 215,863.62 and 96,007.68

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Solution

The fourth proportional to 156,434.49, 215,863.62 and 96,007.68 is: 132,480.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,434.49 : 215,863.62 = 96,007.68 : x
  2. Step 2: Convert to fraction form
    156,434.49/215,863.62 = 96,007.68/x
  3. Step 3: Cross multiply
    156,434.49x = 215,863.62 × 96,007.68
  4. Step 4: Simplify right side
    156,434.49x = 20,724,564,992.57
  5. Step 5: Solve for x
    x = 20,724,564,992.57/156,434.49
  6. Step 6: Final answer
    x = 132,480.79

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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.