Home / 141,900.31-195,822.19-78,238.29

Finding the Fourth Proportional to 141,900.31, 195,822.19 and 78,238.29

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Solution

The fourth proportional to 141,900.31, 195,822.19 and 78,238.29 is: 107,968.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,900.31 : 195,822.19 = 78,238.29 : x
  2. Step 2: Convert to fraction form
    141,900.31/195,822.19 = 78,238.29/x
  3. Step 3: Cross multiply
    141,900.31x = 195,822.19 × 78,238.29
  4. Step 4: Simplify right side
    141,900.31x = 15,320,793,289.66
  5. Step 5: Solve for x
    x = 15,320,793,289.66/141,900.31
  6. Step 6: Final answer
    x = 107,968.71

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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.