Home / 140,338.36-193,667.12-79,909.03

Finding the Fourth Proportional to 140,338.36, 193,667.12 and 79,909.03

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Solution

The fourth proportional to 140,338.36, 193,667.12 and 79,909.03 is: 110,274.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,338.36 : 193,667.12 = 79,909.03 : x
  2. Step 2: Convert to fraction form
    140,338.36/193,667.12 = 79,909.03/x
  3. Step 3: Cross multiply
    140,338.36x = 193,667.12 × 79,909.03
  4. Step 4: Simplify right side
    140,338.36x = 15,475,751,702.09
  5. Step 5: Solve for x
    x = 15,475,751,702.09/140,338.36
  6. Step 6: Final answer
    x = 110,274.57

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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.