Home / 193,895.90-290,724.78-75,429.18

Finding the Fourth Proportional to 193,895.90, 290,724.78 and 75,429.18

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Solution

The fourth proportional to 193,895.90, 290,724.78 and 75,429.18 is: 113,097.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,895.90 : 290,724.78 = 75,429.18 : x
  2. Step 2: Convert to fraction form
    193,895.90/290,724.78 = 75,429.18/x
  3. Step 3: Cross multiply
    193,895.90x = 290,724.78 × 75,429.18
  4. Step 4: Simplify right side
    193,895.90x = 21,929,131,761.08
  5. Step 5: Solve for x
    x = 21,929,131,761.08/193,895.90
  6. Step 6: Final answer
    x = 113,097.45

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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.