Home / 130,126.80-195,190.20-51,243.60

Finding the Fourth Proportional to 130,126.80, 195,190.20 and 51,243.60

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Solution

The fourth proportional to 130,126.80, 195,190.20 and 51,243.60 is: 76,865.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,126.80 : 195,190.20 = 51,243.60 : x
  2. Step 2: Convert to fraction form
    130,126.80/195,190.20 = 51,243.60/x
  3. Step 3: Cross multiply
    130,126.80x = 195,190.20 × 51,243.60
  4. Step 4: Simplify right side
    130,126.80x = 10,002,248,532.72
  5. Step 5: Solve for x
    x = 10,002,248,532.72/130,126.80
  6. Step 6: Final answer
    x = 76,865.40

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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.