Finding the Fourth Proportional to 116,722.20, 161,070.03 and 68,979.99
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Solution
The fourth proportional to 116,722.20, 161,070.03 and 68,979.99 is: 95,188.48
Step by Step Solution
- Step 1: Write the proportion equation
116,722.20 : 161,070.03 = 68,979.99 : x - Step 2: Convert to fraction form
116,722.20/161,070.03 = 68,979.99/x - Step 3: Cross multiply
116,722.20x = 161,070.03 × 68,979.99 - Step 4: Simplify right side
116,722.20x = 11,110,609,058.70 - Step 5: Solve for x
x = 11,110,609,058.70/116,722.20 - Step 6: Final answer
x = 95,188.48
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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.