Home / 141,548.65-195,314.83-81,107.67

Finding the Fourth Proportional to 141,548.65, 195,314.83 and 81,107.67

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Solution

The fourth proportional to 141,548.65, 195,314.83 and 81,107.67 is: 111,915.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,548.65 : 195,314.83 = 81,107.67 : x
  2. Step 2: Convert to fraction form
    141,548.65/195,314.83 = 81,107.67/x
  3. Step 3: Cross multiply
    141,548.65x = 195,314.83 × 81,107.67
  4. Step 4: Simplify right side
    141,548.65x = 15,841,530,777.75
  5. Step 5: Solve for x
    x = 15,841,530,777.75/141,548.65
  6. Step 6: Final answer
    x = 111,915.80

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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.