Home / 141,820.06-195,710.70-78,157.94

Finding the Fourth Proportional to 141,820.06, 195,710.70 and 78,157.94

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Solution

The fourth proportional to 141,820.06, 195,710.70 and 78,157.94 is: 107,857.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,820.06 : 195,710.70 = 78,157.94 : x
  2. Step 2: Convert to fraction form
    141,820.06/195,710.70 = 78,157.94/x
  3. Step 3: Cross multiply
    141,820.06x = 195,710.70 × 78,157.94
  4. Step 4: Simplify right side
    141,820.06x = 15,296,345,147.96
  5. Step 5: Solve for x
    x = 15,296,345,147.96/141,820.06
  6. Step 6: Final answer
    x = 107,857.42

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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.