Home / 133,081.07-199,455.46-66,540.22

Finding the Fourth Proportional to 133,081.07, 199,455.46 and 66,540.22

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Solution

The fourth proportional to 133,081.07, 199,455.46 and 66,540.22 is: 99,727.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,081.07 : 199,455.46 = 66,540.22 : x
  2. Step 2: Convert to fraction form
    133,081.07/199,455.46 = 66,540.22/x
  3. Step 3: Cross multiply
    133,081.07x = 199,455.46 × 66,540.22
  4. Step 4: Simplify right side
    133,081.07x = 13,271,809,523.61
  5. Step 5: Solve for x
    x = 13,271,809,523.61/133,081.07
  6. Step 6: Final answer
    x = 99,727.26

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1.5x scale

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.