Home / 130,629.76-196,012.07-55,729.80

Finding the Fourth Proportional to 130,629.76, 196,012.07 and 55,729.80

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Solution

The fourth proportional to 130,629.76, 196,012.07 and 55,729.80 is: 83,623.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,629.76 : 196,012.07 = 55,729.80 : x
  2. Step 2: Convert to fraction form
    130,629.76/196,012.07 = 55,729.80/x
  3. Step 3: Cross multiply
    130,629.76x = 196,012.07 × 55,729.80
  4. Step 4: Simplify right side
    130,629.76x = 10,923,713,389.02
  5. Step 5: Solve for x
    x = 10,923,713,389.02/130,629.76
  6. Step 6: Final answer
    x = 83,623.47

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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.