Home / 130,451.20-195,822.60-100,999.60

Finding the Fourth Proportional to 130,451.20, 195,822.60 and 100,999.60

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Solution

The fourth proportional to 130,451.20, 195,822.60 and 100,999.60 is: 151,612.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,451.20 : 195,822.60 = 100,999.60 : x
  2. Step 2: Convert to fraction form
    130,451.20/195,822.60 = 100,999.60/x
  3. Step 3: Cross multiply
    130,451.20x = 195,822.60 × 100,999.60
  4. Step 4: Simplify right side
    130,451.20x = 19,778,004,270.96
  5. Step 5: Solve for x
    x = 19,778,004,270.96/130,451.20
  6. Step 6: Final answer
    x = 151,612.28

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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.