Home / 130,018.40-195,027.60-107,856.80

Finding the Fourth Proportional to 130,018.40, 195,027.60 and 107,856.80

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Solution

The fourth proportional to 130,018.40, 195,027.60 and 107,856.80 is: 161,785.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,018.40 : 195,027.60 = 107,856.80 : x
  2. Step 2: Convert to fraction form
    130,018.40/195,027.60 = 107,856.80/x
  3. Step 3: Cross multiply
    130,018.40x = 195,027.60 × 107,856.80
  4. Step 4: Simplify right side
    130,018.40x = 21,035,052,847.68
  5. Step 5: Solve for x
    x = 21,035,052,847.68/130,018.40
  6. Step 6: Final answer
    x = 161,785.20

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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.