Home / 190,372.84-262,816.38-121,531.54

Finding the Fourth Proportional to 190,372.84, 262,816.38 and 121,531.54

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Solution

The fourth proportional to 190,372.84, 262,816.38 and 121,531.54 is: 167,778.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,372.84 : 262,816.38 = 121,531.54 : x
  2. Step 2: Convert to fraction form
    190,372.84/262,816.38 = 121,531.54/x
  3. Step 3: Cross multiply
    190,372.84x = 262,816.38 × 121,531.54
  4. Step 4: Simplify right side
    190,372.84x = 31,940,479,398.63
  5. Step 5: Solve for x
    x = 31,940,479,398.63/190,372.84
  6. Step 6: Final answer
    x = 167,778.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.