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Finding the Fourth Proportional to 187,605.01, 258,897.77 and 102,729.97

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Solution

The fourth proportional to 187,605.01, 258,897.77 and 102,729.97 is: 141,768.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,605.01 : 258,897.77 = 102,729.97 : x
  2. Step 2: Convert to fraction form
    187,605.01/258,897.77 = 102,729.97/x
  3. Step 3: Cross multiply
    187,605.01x = 258,897.77 × 102,729.97
  4. Step 4: Simplify right side
    187,605.01x = 26,596,560,145.17
  5. Step 5: Solve for x
    x = 26,596,560,145.17/187,605.01
  6. Step 6: Final answer
    x = 141,768.92

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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.