Home / 195,739.85-270,116.40-115,172.60

Finding the Fourth Proportional to 195,739.85, 270,116.40 and 115,172.60

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Solution

The fourth proportional to 195,739.85, 270,116.40 and 115,172.60 is: 158,935.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,739.85 : 270,116.40 = 115,172.60 : x
  2. Step 2: Convert to fraction form
    195,739.85/270,116.40 = 115,172.60/x
  3. Step 3: Cross multiply
    195,739.85x = 270,116.40 × 115,172.60
  4. Step 4: Simplify right side
    195,739.85x = 31,110,006,740.06
  5. Step 5: Solve for x
    x = 31,110,006,740.06/195,739.85
  6. Step 6: Final answer
    x = 158,935.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.