Home / 123,556.64-185,268.35-66,661.04

Finding the Fourth Proportional to 123,556.64, 185,268.35 and 66,661.04

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Solution

The fourth proportional to 123,556.64, 185,268.35 and 66,661.04 is: 99,955.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,556.64 : 185,268.35 = 66,661.04 : x
  2. Step 2: Convert to fraction form
    123,556.64/185,268.35 = 66,661.04/x
  3. Step 3: Cross multiply
    123,556.64x = 185,268.35 × 66,661.04
  4. Step 4: Simplify right side
    123,556.64x = 12,350,179,630.44
  5. Step 5: Solve for x
    x = 12,350,179,630.44/123,556.64
  6. Step 6: Final answer
    x = 99,955.62

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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.