Home / 115,661.36-173,012.10-108,575.48

Finding the Fourth Proportional to 115,661.36, 173,012.10 and 108,575.48

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Solution

The fourth proportional to 115,661.36, 173,012.10 and 108,575.48 is: 162,412.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,661.36 : 173,012.10 = 108,575.48 : x
  2. Step 2: Convert to fraction form
    115,661.36/173,012.10 = 108,575.48/x
  3. Step 3: Cross multiply
    115,661.36x = 173,012.10 × 108,575.48
  4. Step 4: Simplify right side
    115,661.36x = 18,784,870,938.25
  5. Step 5: Solve for x
    x = 18,784,870,938.25/115,661.36
  6. Step 6: Final answer
    x = 162,412.68

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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.