Home / 140,270.78-193,584.06-79,860.98

Finding the Fourth Proportional to 140,270.78, 193,584.06 and 79,860.98

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Solution

The fourth proportional to 140,270.78, 193,584.06 and 79,860.98 is: 110,214.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,270.78 : 193,584.06 = 79,860.98 : x
  2. Step 2: Convert to fraction form
    140,270.78/193,584.06 = 79,860.98/x
  3. Step 3: Cross multiply
    140,270.78x = 193,584.06 × 79,860.98
  4. Step 4: Simplify right side
    140,270.78x = 15,459,812,743.98
  5. Step 5: Solve for x
    x = 15,459,812,743.98/140,270.78
  6. Step 6: Final answer
    x = 110,214.06

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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.