Finding the Fourth Proportional to 155,724.98, 214,648.08 and 121,674.08
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Solution
The fourth proportional to 155,724.98, 214,648.08 and 121,674.08 is: 167,713.03
Step by Step Solution
- Step 1: Write the proportion equation
155,724.98 : 214,648.08 = 121,674.08 : x - Step 2: Convert to fraction form
155,724.98/214,648.08 = 121,674.08/x - Step 3: Cross multiply
155,724.98x = 214,648.08 × 121,674.08 - Step 4: Simplify right side
155,724.98x = 26,117,107,657.77 - Step 5: Solve for x
x = 26,117,107,657.77/155,724.98 - Step 6: Final answer
x = 167,713.03
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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.