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Finding the Fourth Proportional to 187,673.72, 259,008.36 and 107,113.45

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Solution

The fourth proportional to 187,673.72, 259,008.36 and 107,113.45 is: 147,827.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,673.72 : 259,008.36 = 107,113.45 : x
  2. Step 2: Convert to fraction form
    187,673.72/259,008.36 = 107,113.45/x
  3. Step 3: Cross multiply
    187,673.72x = 259,008.36 × 107,113.45
  4. Step 4: Simplify right side
    187,673.72x = 27,743,279,018.44
  5. Step 5: Solve for x
    x = 27,743,279,018.44/187,673.72
  6. Step 6: Final answer
    x = 147,827.19

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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.