Home / 195,205.48-269,383.70-105,781.48

Finding the Fourth Proportional to 195,205.48, 269,383.70 and 105,781.48

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Solution

The fourth proportional to 195,205.48, 269,383.70 and 105,781.48 is: 145,978.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,205.48 : 269,383.70 = 105,781.48 : x
  2. Step 2: Convert to fraction form
    195,205.48/269,383.70 = 105,781.48/x
  3. Step 3: Cross multiply
    195,205.48x = 269,383.70 × 105,781.48
  4. Step 4: Simplify right side
    195,205.48x = 28,495,806,473.88
  5. Step 5: Solve for x
    x = 28,495,806,473.88/195,205.48
  6. Step 6: Final answer
    x = 145,978.52

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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.