Home / 193,541.78-290,330.94-75,222.20

Finding the Fourth Proportional to 193,541.78, 290,330.94 and 75,222.20

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Solution

The fourth proportional to 193,541.78, 290,330.94 and 75,222.20 is: 112,840.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,541.78 : 290,330.94 = 75,222.20 : x
  2. Step 2: Convert to fraction form
    193,541.78/290,330.94 = 75,222.20/x
  3. Step 3: Cross multiply
    193,541.78x = 290,330.94 × 75,222.20
  4. Step 4: Simplify right side
    193,541.78x = 21,839,332,034.87
  5. Step 5: Solve for x
    x = 21,839,332,034.87/193,541.78
  6. Step 6: Final answer
    x = 112,840.40

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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.