Finding the Fourth Proportional to 115,342.93, 159,188.97 and 67,615.30
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Solution
The fourth proportional to 115,342.93, 159,188.97 and 67,615.30 is: 93,318.33
Step by Step Solution
- Step 1: Write the proportion equation
115,342.93 : 159,188.97 = 67,615.30 : x - Step 2: Convert to fraction form
115,342.93/159,188.97 = 67,615.30/x - Step 3: Cross multiply
115,342.93x = 159,188.97 × 67,615.30 - Step 4: Simplify right side
115,342.93x = 10,763,609,963.24 - Step 5: Solve for x
x = 10,763,609,963.24/115,342.93 - Step 6: Final answer
x = 93,318.33
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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.