Home / 193,763.74-290,701.19-81,386.16

Finding the Fourth Proportional to 193,763.74, 290,701.19 and 81,386.16

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Solution

The fourth proportional to 193,763.74, 290,701.19 and 81,386.16 is: 122,102.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,763.74 : 290,701.19 = 81,386.16 : x
  2. Step 2: Convert to fraction form
    193,763.74/290,701.19 = 81,386.16/x
  3. Step 3: Cross multiply
    193,763.74x = 290,701.19 × 81,386.16
  4. Step 4: Simplify right side
    193,763.74x = 23,659,053,765.00
  5. Step 5: Solve for x
    x = 23,659,053,765.00/193,763.74
  6. Step 6: Final answer
    x = 122,102.59

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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.