Home / 187,968.09-259,396.31-103,085.76

Finding the Fourth Proportional to 187,968.09, 259,396.31 and 103,085.76

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Solution

The fourth proportional to 187,968.09, 259,396.31 and 103,085.76 is: 142,258.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,968.09 : 259,396.31 = 103,085.76 : x
  2. Step 2: Convert to fraction form
    187,968.09/259,396.31 = 103,085.76/x
  3. Step 3: Cross multiply
    187,968.09x = 259,396.31 × 103,085.76
  4. Step 4: Simplify right side
    187,968.09x = 26,740,065,757.55
  5. Step 5: Solve for x
    x = 26,740,065,757.55/187,968.09
  6. Step 6: Final answer
    x = 142,258.54

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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.