Home / 141,899.31-195,820.81-78,237.29

Finding the Fourth Proportional to 141,899.31, 195,820.81 and 78,237.29

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Solution

The fourth proportional to 141,899.31, 195,820.81 and 78,237.29 is: 107,967.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,899.31 : 195,820.81 = 78,237.29 : x
  2. Step 2: Convert to fraction form
    141,899.31/195,820.81 = 78,237.29/x
  3. Step 3: Cross multiply
    141,899.31x = 195,820.81 × 78,237.29
  4. Step 4: Simplify right side
    141,899.31x = 15,320,489,793.96
  5. Step 5: Solve for x
    x = 15,320,489,793.96/141,899.31
  6. Step 6: Final answer
    x = 107,967.33

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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.