Home / 142,279.06-213,441.74-66,453.42

Finding the Fourth Proportional to 142,279.06, 213,441.74 and 66,453.42

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Solution

The fourth proportional to 142,279.06, 213,441.74 and 66,453.42 is: 99,690.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,279.06 : 213,441.74 = 66,453.42 : x
  2. Step 2: Convert to fraction form
    142,279.06/213,441.74 = 66,453.42/x
  3. Step 3: Cross multiply
    142,279.06x = 213,441.74 × 66,453.42
  4. Step 4: Simplify right side
    142,279.06x = 14,183,933,759.88
  5. Step 5: Solve for x
    x = 14,183,933,759.88/142,279.06
  6. Step 6: Final answer
    x = 99,690.95

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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.