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Finding the Fourth Proportional to 187,891.71, 259,262.37 and 107,302.08

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Solution

The fourth proportional to 187,891.71, 259,262.37 and 107,302.08 is: 148,060.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,891.71 : 259,262.37 = 107,302.08 : x
  2. Step 2: Convert to fraction form
    187,891.71/259,262.37 = 107,302.08/x
  3. Step 3: Cross multiply
    187,891.71x = 259,262.37 × 107,302.08
  4. Step 4: Simplify right side
    187,891.71x = 27,819,391,566.73
  5. Step 5: Solve for x
    x = 27,819,391,566.73/187,891.71
  6. Step 6: Final answer
    x = 148,060.77

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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.