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Finding the Fourth Proportional to 187,691.35, 259,012.78 and 101,648.35

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Solution

The fourth proportional to 187,691.35, 259,012.78 and 101,648.35 is: 140,274.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,691.35 : 259,012.78 = 101,648.35 : x
  2. Step 2: Convert to fraction form
    187,691.35/259,012.78 = 101,648.35/x
  3. Step 3: Cross multiply
    187,691.35x = 259,012.78 × 101,648.35
  4. Step 4: Simplify right side
    187,691.35x = 26,328,221,855.20
  5. Step 5: Solve for x
    x = 26,328,221,855.20/187,691.35
  6. Step 6: Final answer
    x = 140,274.03

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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.