Home / 130,361.88-195,240.78-111,178.20

Finding the Fourth Proportional to 130,361.88, 195,240.78 and 111,178.20

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Solution

The fourth proportional to 130,361.88, 195,240.78 and 111,178.20 is: 166,509.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,361.88 : 195,240.78 = 111,178.20 : x
  2. Step 2: Convert to fraction form
    130,361.88/195,240.78 = 111,178.20/x
  3. Step 3: Cross multiply
    130,361.88x = 195,240.78 × 111,178.20
  4. Step 4: Simplify right side
    130,361.88x = 21,706,518,487.00
  5. Step 5: Solve for x
    x = 21,706,518,487.00/130,361.88
  6. Step 6: Final answer
    x = 166,509.71

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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.