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Finding the Fourth Proportional to 187,959.48, 259,379.46 and 101,913.72

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Solution

The fourth proportional to 187,959.48, 259,379.46 and 101,913.72 is: 140,638.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,959.48 : 259,379.46 = 101,913.72 : x
  2. Step 2: Convert to fraction form
    187,959.48/259,379.46 = 101,913.72/x
  3. Step 3: Cross multiply
    187,959.48x = 259,379.46 × 101,913.72
  4. Step 4: Simplify right side
    187,959.48x = 26,434,325,660.19
  5. Step 5: Solve for x
    x = 26,434,325,660.19/187,959.48
  6. Step 6: Final answer
    x = 140,638.43

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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.