Home / 140,049.56-193,284.72-79,629.25

Finding the Fourth Proportional to 140,049.56, 193,284.72 and 79,629.25

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Solution

The fourth proportional to 140,049.56, 193,284.72 and 79,629.25 is: 109,897.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,049.56 : 193,284.72 = 79,629.25 : x
  2. Step 2: Convert to fraction form
    140,049.56/193,284.72 = 79,629.25/x
  3. Step 3: Cross multiply
    140,049.56x = 193,284.72 × 79,629.25
  4. Step 4: Simplify right side
    140,049.56x = 15,391,117,489.13
  5. Step 5: Solve for x
    x = 15,391,117,489.13/140,049.56
  6. Step 6: Final answer
    x = 109,897.65

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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.