Home / 86,485.96-118,324.23-86,112.55

Finding the Fourth Proportional to 86,485.96, 118,324.23 and 86,112.55

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Solution

The fourth proportional to 86,485.96, 118,324.23 and 86,112.55 is: 117,813.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,485.96 : 118,324.23 = 86,112.55 : x
  2. Step 2: Convert to fraction form
    86,485.96/118,324.23 = 86,112.55/x
  3. Step 3: Cross multiply
    86,485.96x = 118,324.23 × 86,112.55
  4. Step 4: Simplify right side
    86,485.96x = 10,189,201,172.09
  5. Step 5: Solve for x
    x = 10,189,201,172.09/86,485.96
  6. Step 6: Final answer
    x = 117,813.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.