Home / 140,093.60-193,321.28-79,678.94

Finding the Fourth Proportional to 140,093.60, 193,321.28 and 79,678.94

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Solution

The fourth proportional to 140,093.60, 193,321.28 and 79,678.94 is: 109,952.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,093.60 : 193,321.28 = 79,678.94 : x
  2. Step 2: Convert to fraction form
    140,093.60/193,321.28 = 79,678.94/x
  3. Step 3: Cross multiply
    140,093.60x = 193,321.28 × 79,678.94
  4. Step 4: Simplify right side
    140,093.60x = 15,403,633,304.84
  5. Step 5: Solve for x
    x = 15,403,633,304.84/140,093.60
  6. Step 6: Final answer
    x = 109,952.45

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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.