Home / 140,705.32-194,172.44-76,174.08

Finding the Fourth Proportional to 140,705.32, 194,172.44 and 76,174.08

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Solution

The fourth proportional to 140,705.32, 194,172.44 and 76,174.08 is: 105,119.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,705.32 : 194,172.44 = 76,174.08 : x
  2. Step 2: Convert to fraction form
    140,705.32/194,172.44 = 76,174.08/x
  3. Step 3: Cross multiply
    140,705.32x = 194,172.44 × 76,174.08
  4. Step 4: Simplify right side
    140,705.32x = 14,790,906,978.36
  5. Step 5: Solve for x
    x = 14,790,906,978.36/140,705.32
  6. Step 6: Final answer
    x = 105,119.74

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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.