Home / 107,816.80-161,667.60-45,416.80

Finding the Fourth Proportional to 107,816.80, 161,667.60 and 45,416.80

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Solution

The fourth proportional to 107,816.80, 161,667.60 and 45,416.80 is: 68,100.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,816.80 : 161,667.60 = 45,416.80 : x
  2. Step 2: Convert to fraction form
    107,816.80/161,667.60 = 45,416.80/x
  3. Step 3: Cross multiply
    107,816.80x = 161,667.60 × 45,416.80
  4. Step 4: Simplify right side
    107,816.80x = 7,342,425,055.68
  5. Step 5: Solve for x
    x = 7,342,425,055.68/107,816.80
  6. Step 6: Final answer
    x = 68,100.94

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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.