Home / 130,483.15-195,771.36-80,505.07

Finding the Fourth Proportional to 130,483.15, 195,771.36 and 80,505.07

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Solution

The fourth proportional to 130,483.15, 195,771.36 and 80,505.07 is: 120,786.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,483.15 : 195,771.36 = 80,505.07 : x
  2. Step 2: Convert to fraction form
    130,483.15/195,771.36 = 80,505.07/x
  3. Step 3: Cross multiply
    130,483.15x = 195,771.36 × 80,505.07
  4. Step 4: Simplify right side
    130,483.15x = 15,760,587,040.80
  5. Step 5: Solve for x
    x = 15,760,587,040.80/130,483.15
  6. Step 6: Final answer
    x = 120,786.38

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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.