Finding the Fourth Proportional to 115,202.21, 158,982.41 and 67,451.09
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Solution
The fourth proportional to 115,202.21, 158,982.41 and 67,451.09 is: 93,084.47
Step by Step Solution
- Step 1: Write the proportion equation
115,202.21 : 158,982.41 = 67,451.09 : x - Step 2: Convert to fraction form
115,202.21/158,982.41 = 67,451.09/x - Step 3: Cross multiply
115,202.21x = 158,982.41 × 67,451.09 - Step 4: Simplify right side
115,202.21x = 10,723,536,219.04 - Step 5: Solve for x
x = 10,723,536,219.04/115,202.21 - Step 6: Final answer
x = 93,084.47
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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.