Home / 130,144.80-195,282.54-51,315.60

Finding the Fourth Proportional to 130,144.80, 195,282.54 and 51,315.60

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Solution

The fourth proportional to 130,144.80, 195,282.54 and 51,315.60 is: 76,999.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,144.80 : 195,282.54 = 51,315.60 : x
  2. Step 2: Convert to fraction form
    130,144.80/195,282.54 = 51,315.60/x
  3. Step 3: Cross multiply
    130,144.80x = 195,282.54 × 51,315.60
  4. Step 4: Simplify right side
    130,144.80x = 10,021,040,709.62
  5. Step 5: Solve for x
    x = 10,021,040,709.62/130,144.80
  6. Step 6: Final answer
    x = 76,999.16

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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.