Home / 129,968.89-194,971.95-40,019.23

Finding the Fourth Proportional to 129,968.89, 194,971.95 and 40,019.23

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Solution

The fourth proportional to 129,968.89, 194,971.95 and 40,019.23 is: 60,034.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,968.89 : 194,971.95 = 40,019.23 : x
  2. Step 2: Convert to fraction form
    129,968.89/194,971.95 = 40,019.23/x
  3. Step 3: Cross multiply
    129,968.89x = 194,971.95 × 40,019.23
  4. Step 4: Simplify right side
    129,968.89x = 7,802,627,310.60
  5. Step 5: Solve for x
    x = 7,802,627,310.60/129,968.89
  6. Step 6: Final answer
    x = 60,034.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.