Home / 140,458.51-193,785.26-79,986.28

Finding the Fourth Proportional to 140,458.51, 193,785.26 and 79,986.28

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Solution

The fourth proportional to 140,458.51, 193,785.26 and 79,986.28 is: 110,354.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,458.51 : 193,785.26 = 79,986.28 : x
  2. Step 2: Convert to fraction form
    140,458.51/193,785.26 = 79,986.28/x
  3. Step 3: Cross multiply
    140,458.51x = 193,785.26 × 79,986.28
  4. Step 4: Simplify right side
    140,458.51x = 15,500,162,066.23
  5. Step 5: Solve for x
    x = 15,500,162,066.23/140,458.51
  6. Step 6: Final answer
    x = 110,354.03

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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.