Home / 140,703.82-194,170.38-76,172.58

Finding the Fourth Proportional to 140,703.82, 194,170.38 and 76,172.58

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Solution

The fourth proportional to 140,703.82, 194,170.38 and 76,172.58 is: 105,117.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,703.82 : 194,170.38 = 76,172.58 : x
  2. Step 2: Convert to fraction form
    140,703.82/194,170.38 = 76,172.58/x
  3. Step 3: Cross multiply
    140,703.82x = 194,170.38 × 76,172.58
  4. Step 4: Simplify right side
    140,703.82x = 14,790,458,804.18
  5. Step 5: Solve for x
    x = 14,790,458,804.18/140,703.82
  6. Step 6: Final answer
    x = 105,117.68

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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.