Home / 142,843.74-197,146.20-91,183.14

Finding the Fourth Proportional to 142,843.74, 197,146.20 and 91,183.14

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Solution

The fourth proportional to 142,843.74, 197,146.20 and 91,183.14 is: 125,846.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,843.74 : 197,146.20 = 91,183.14 : x
  2. Step 2: Convert to fraction form
    142,843.74/197,146.20 = 91,183.14/x
  3. Step 3: Cross multiply
    142,843.74x = 197,146.20 × 91,183.14
  4. Step 4: Simplify right side
    142,843.74x = 17,976,409,555.07
  5. Step 5: Solve for x
    x = 17,976,409,555.07/142,843.74
  6. Step 6: Final answer
    x = 125,846.67

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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.