Home / 165,919.80-248,879.70-99,564.60

Finding the Fourth Proportional to 165,919.80, 248,879.70 and 99,564.60

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Solution

The fourth proportional to 165,919.80, 248,879.70 and 99,564.60 is: 149,346.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,919.80 : 248,879.70 = 99,564.60 : x
  2. Step 2: Convert to fraction form
    165,919.80/248,879.70 = 99,564.60/x
  3. Step 3: Cross multiply
    165,919.80x = 248,879.70 × 99,564.60
  4. Step 4: Simplify right side
    165,919.80x = 24,779,607,778.62
  5. Step 5: Solve for x
    x = 24,779,607,778.62/165,919.80
  6. Step 6: Final answer
    x = 149,346.90

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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.