Home / 187,972.63-259,415.96-107,398.43

Finding the Fourth Proportional to 187,972.63, 259,415.96 and 107,398.43

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Solution

The fourth proportional to 187,972.63, 259,415.96 and 107,398.43 is: 148,217.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,972.63 : 259,415.96 = 107,398.43 : x
  2. Step 2: Convert to fraction form
    187,972.63/259,415.96 = 107,398.43/x
  3. Step 3: Cross multiply
    187,972.63x = 259,415.96 × 107,398.43
  4. Step 4: Simplify right side
    187,972.63x = 27,860,866,991.35
  5. Step 5: Solve for x
    x = 27,860,866,991.35/187,972.63
  6. Step 6: Final answer
    x = 148,217.68

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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.