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Finding the Fourth Proportional to 187,970.56, 259,375.39 and 107,403.30

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Solution

The fourth proportional to 187,970.56, 259,375.39 and 107,403.30 is: 148,202.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,970.56 : 259,375.39 = 107,403.30 : x
  2. Step 2: Convert to fraction form
    187,970.56/259,375.39 = 107,403.30/x
  3. Step 3: Cross multiply
    187,970.56x = 259,375.39 × 107,403.30
  4. Step 4: Simplify right side
    187,970.56x = 27,857,772,824.79
  5. Step 5: Solve for x
    x = 27,857,772,824.79/187,970.56
  6. Step 6: Final answer
    x = 148,202.85

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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.