Home / 140,015.84-193,165.41-81,040.51

Finding the Fourth Proportional to 140,015.84, 193,165.41 and 81,040.51

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Solution

The fourth proportional to 140,015.84, 193,165.41 and 81,040.51 is: 111,803.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,015.84 : 193,165.41 = 81,040.51 : x
  2. Step 2: Convert to fraction form
    140,015.84/193,165.41 = 81,040.51/x
  3. Step 3: Cross multiply
    140,015.84x = 193,165.41 × 81,040.51
  4. Step 4: Simplify right side
    140,015.84x = 15,654,223,090.72
  5. Step 5: Solve for x
    x = 15,654,223,090.72/140,015.84
  6. Step 6: Final answer
    x = 111,803.23

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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.