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Finding the Fourth Proportional to 187,644.51, 258,949.06 and 101,603.59

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Solution

The fourth proportional to 187,644.51, 258,949.06 and 101,603.59 is: 140,212.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,644.51 : 258,949.06 = 101,603.59 : x
  2. Step 2: Convert to fraction form
    187,644.51/258,949.06 = 101,603.59/x
  3. Step 3: Cross multiply
    187,644.51x = 258,949.06 × 101,603.59
  4. Step 4: Simplify right side
    187,644.51x = 26,310,153,221.74
  5. Step 5: Solve for x
    x = 26,310,153,221.74/187,644.51
  6. Step 6: Final answer
    x = 140,212.75

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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.