Home / 130,910.75-196,183.05-70,809.43

Finding the Fourth Proportional to 130,910.75, 196,183.05 and 70,809.43

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Solution

The fourth proportional to 130,910.75, 196,183.05 and 70,809.43 is: 106,115.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,910.75 : 196,183.05 = 70,809.43 : x
  2. Step 2: Convert to fraction form
    130,910.75/196,183.05 = 70,809.43/x
  3. Step 3: Cross multiply
    130,910.75x = 196,183.05 × 70,809.43
  4. Step 4: Simplify right side
    130,910.75x = 13,891,609,946.16
  5. Step 5: Solve for x
    x = 13,891,609,946.16/130,910.75
  6. Step 6: Final answer
    x = 106,115.12

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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.