Home / 130,103.20-195,227.70-55,210.60

Finding the Fourth Proportional to 130,103.20, 195,227.70 and 55,210.60

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Solution

The fourth proportional to 130,103.20, 195,227.70 and 55,210.60 is: 82,846.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,103.20 : 195,227.70 = 55,210.60 : x
  2. Step 2: Convert to fraction form
    130,103.20/195,227.70 = 55,210.60/x
  3. Step 3: Cross multiply
    130,103.20x = 195,227.70 × 55,210.60
  4. Step 4: Simplify right side
    130,103.20x = 10,778,638,453.62
  5. Step 5: Solve for x
    x = 10,778,638,453.62/130,103.20
  6. Step 6: Final answer
    x = 82,846.84

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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.