Home / 140,101.36-193,331.96-79,686.70

Finding the Fourth Proportional to 140,101.36, 193,331.96 and 79,686.70

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Solution

The fourth proportional to 140,101.36, 193,331.96 and 79,686.70 is: 109,963.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,101.36 : 193,331.96 = 79,686.70 : x
  2. Step 2: Convert to fraction form
    140,101.36/193,331.96 = 79,686.70/x
  3. Step 3: Cross multiply
    140,101.36x = 193,331.96 × 79,686.70
  4. Step 4: Simplify right side
    140,101.36x = 15,405,985,896.93
  5. Step 5: Solve for x
    x = 15,405,985,896.93/140,101.36
  6. Step 6: Final answer
    x = 109,963.14

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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.