Home / 140,721.03-194,195.08-76,190.26

Finding the Fourth Proportional to 140,721.03, 194,195.08 and 76,190.26

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Solution

The fourth proportional to 140,721.03, 194,195.08 and 76,190.26 is: 105,142.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,721.03 : 194,195.08 = 76,190.26 : x
  2. Step 2: Convert to fraction form
    140,721.03/194,195.08 = 76,190.26/x
  3. Step 3: Cross multiply
    140,721.03x = 194,195.08 × 76,190.26
  4. Step 4: Simplify right side
    140,721.03x = 14,795,773,443.84
  5. Step 5: Solve for x
    x = 14,795,773,443.84/140,721.03
  6. Step 6: Final answer
    x = 105,142.59

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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.