Home / 193,489.16-290,159.01-75,144.51

Finding the Fourth Proportional to 193,489.16, 290,159.01 and 75,144.51

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Solution

The fourth proportional to 193,489.16, 290,159.01 and 75,144.51 is: 112,687.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,489.16 : 290,159.01 = 75,144.51 : x
  2. Step 2: Convert to fraction form
    193,489.16/290,159.01 = 75,144.51/x
  3. Step 3: Cross multiply
    193,489.16x = 290,159.01 × 75,144.51
  4. Step 4: Simplify right side
    193,489.16x = 21,803,856,628.54
  5. Step 5: Solve for x
    x = 21,803,856,628.54/193,489.16
  6. Step 6: Final answer
    x = 112,687.75

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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.