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Finding the Fourth Proportional to 187,489.77, 258,736.73 and 102,606.63

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Solution

The fourth proportional to 187,489.77, 258,736.73 and 102,606.63 is: 141,597.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,489.77 : 258,736.73 = 102,606.63 : x
  2. Step 2: Convert to fraction form
    187,489.77/258,736.73 = 102,606.63/x
  3. Step 3: Cross multiply
    187,489.77x = 258,736.73 × 102,606.63
  4. Step 4: Simplify right side
    187,489.77x = 26,548,103,409.49
  5. Step 5: Solve for x
    x = 26,548,103,409.49/187,489.77
  6. Step 6: Final answer
    x = 141,597.61

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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.