Home / 130,696.08-195,980.22-54,780.36

Finding the Fourth Proportional to 130,696.08, 195,980.22 and 54,780.36

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Solution

The fourth proportional to 130,696.08, 195,980.22 and 54,780.36 is: 82,143.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,696.08 : 195,980.22 = 54,780.36 : x
  2. Step 2: Convert to fraction form
    130,696.08/195,980.22 = 54,780.36/x
  3. Step 3: Cross multiply
    130,696.08x = 195,980.22 × 54,780.36
  4. Step 4: Simplify right side
    130,696.08x = 10,735,867,004.48
  5. Step 5: Solve for x
    x = 10,735,867,004.48/130,696.08
  6. Step 6: Final answer
    x = 82,143.76

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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.