Home / 140,851.82-194,376.08-76,321.19

Finding the Fourth Proportional to 140,851.82, 194,376.08 and 76,321.19

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Solution

The fourth proportional to 140,851.82, 194,376.08 and 76,321.19 is: 105,323.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,851.82 : 194,376.08 = 76,321.19 : x
  2. Step 2: Convert to fraction form
    140,851.82/194,376.08 = 76,321.19/x
  3. Step 3: Cross multiply
    140,851.82x = 194,376.08 × 76,321.19
  4. Step 4: Simplify right side
    140,851.82x = 14,835,013,733.14
  5. Step 5: Solve for x
    x = 14,835,013,733.14/140,851.82
  6. Step 6: Final answer
    x = 105,323.55

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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.