Home / 193,501.36-290,270.40-75,181.84

Finding the Fourth Proportional to 193,501.36, 290,270.40 and 75,181.84

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Solution

The fourth proportional to 193,501.36, 290,270.40 and 75,181.84 is: 112,779.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,501.36 : 290,270.40 = 75,181.84 : x
  2. Step 2: Convert to fraction form
    193,501.36/290,270.40 = 75,181.84/x
  3. Step 3: Cross multiply
    193,501.36x = 290,270.40 × 75,181.84
  4. Step 4: Simplify right side
    193,501.36x = 21,823,062,769.54
  5. Step 5: Solve for x
    x = 21,823,062,769.54/193,501.36
  6. Step 6: Final answer
    x = 112,779.89

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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.