Home / 141,533.67-195,321.14-81,115.90

Finding the Fourth Proportional to 141,533.67, 195,321.14 and 81,115.90

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Solution

The fourth proportional to 141,533.67, 195,321.14 and 81,115.90 is: 111,942.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,533.67 : 195,321.14 = 81,115.90 : x
  2. Step 2: Convert to fraction form
    141,533.67/195,321.14 = 81,115.90/x
  3. Step 3: Cross multiply
    141,533.67x = 195,321.14 × 81,115.90
  4. Step 4: Simplify right side
    141,533.67x = 15,843,650,060.13
  5. Step 5: Solve for x
    x = 15,843,650,060.13/141,533.67
  6. Step 6: Final answer
    x = 111,942.62

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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.