Home / 149,078.96-205,743.52-111,287.60

Finding the Fourth Proportional to 149,078.96, 205,743.52 and 111,287.60

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Solution

The fourth proportional to 149,078.96, 205,743.52 and 111,287.60 is: 153,587.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,078.96 : 205,743.52 = 111,287.60 : x
  2. Step 2: Convert to fraction form
    149,078.96/205,743.52 = 111,287.60/x
  3. Step 3: Cross multiply
    149,078.96x = 205,743.52 × 111,287.60
  4. Step 4: Simplify right side
    149,078.96x = 22,896,702,556.35
  5. Step 5: Solve for x
    x = 22,896,702,556.35/149,078.96
  6. Step 6: Final answer
    x = 153,587.75

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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.