Home / 193,785.08-290,582.80-79,911.60

Finding the Fourth Proportional to 193,785.08, 290,582.80 and 79,911.60

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Solution

The fourth proportional to 193,785.08, 290,582.80 and 79,911.60 is: 119,828.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,785.08 : 290,582.80 = 79,911.60 : x
  2. Step 2: Convert to fraction form
    193,785.08/290,582.80 = 79,911.60/x
  3. Step 3: Cross multiply
    193,785.08x = 290,582.80 × 79,911.60
  4. Step 4: Simplify right side
    193,785.08x = 23,220,936,480.48
  5. Step 5: Solve for x
    x = 23,220,936,480.48/193,785.08
  6. Step 6: Final answer
    x = 119,828.30

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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.