Home / 141,299.16-212,021.44-78,107.56

Finding the Fourth Proportional to 141,299.16, 212,021.44 and 78,107.56

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Solution

The fourth proportional to 141,299.16, 212,021.44 and 78,107.56 is: 117,201.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,299.16 : 212,021.44 = 78,107.56 : x
  2. Step 2: Convert to fraction form
    141,299.16/212,021.44 = 78,107.56/x
  3. Step 3: Cross multiply
    141,299.16x = 212,021.44 × 78,107.56
  4. Step 4: Simplify right side
    141,299.16x = 16,560,477,346.09
  5. Step 5: Solve for x
    x = 16,560,477,346.09/141,299.16
  6. Step 6: Final answer
    x = 117,201.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.