Home / 193,550.36-290,276.82-68,862.20

Finding the Fourth Proportional to 193,550.36, 290,276.82 and 68,862.20

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Solution

The fourth proportional to 193,550.36, 290,276.82 and 68,862.20 is: 103,275.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,550.36 : 290,276.82 = 68,862.20 : x
  2. Step 2: Convert to fraction form
    193,550.36/290,276.82 = 68,862.20/x
  3. Step 3: Cross multiply
    193,550.36x = 290,276.82 × 68,862.20
  4. Step 4: Simplify right side
    193,550.36x = 19,989,100,434.20
  5. Step 5: Solve for x
    x = 19,989,100,434.20/193,550.36
  6. Step 6: Final answer
    x = 103,275.97

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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.