Home / 130,131.20-195,196.80-111,104.30

Finding the Fourth Proportional to 130,131.20, 195,196.80 and 111,104.30

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Solution

The fourth proportional to 130,131.20, 195,196.80 and 111,104.30 is: 166,656.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,131.20 : 195,196.80 = 111,104.30 : x
  2. Step 2: Convert to fraction form
    130,131.20/195,196.80 = 111,104.30/x
  3. Step 3: Cross multiply
    130,131.20x = 195,196.80 × 111,104.30
  4. Step 4: Simplify right side
    130,131.20x = 21,687,203,826.24
  5. Step 5: Solve for x
    x = 21,687,203,826.24/130,131.20
  6. Step 6: Final answer
    x = 166,656.45

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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.