Home / 141,378.75-195,103.08-80,950.32

Finding the Fourth Proportional to 141,378.75, 195,103.08 and 80,950.32

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Solution

The fourth proportional to 141,378.75, 195,103.08 and 80,950.32 is: 111,711.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,378.75 : 195,103.08 = 80,950.32 : x
  2. Step 2: Convert to fraction form
    141,378.75/195,103.08 = 80,950.32/x
  3. Step 3: Cross multiply
    141,378.75x = 195,103.08 × 80,950.32
  4. Step 4: Simplify right side
    141,378.75x = 15,793,656,758.99
  5. Step 5: Solve for x
    x = 15,793,656,758.99/141,378.75
  6. Step 6: Final answer
    x = 111,711.67

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1.5x scale

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.