Finding the Fourth Proportional to 158,415.48, 218,608.32 and 86,794.08
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Solution
The fourth proportional to 158,415.48, 218,608.32 and 86,794.08 is: 119,773.07
Step by Step Solution
- Step 1: Write the proportion equation
158,415.48 : 218,608.32 = 86,794.08 : x - Step 2: Convert to fraction form
158,415.48/218,608.32 = 86,794.08/x - Step 3: Cross multiply
158,415.48x = 218,608.32 × 86,794.08 - Step 4: Simplify right side
158,415.48x = 18,973,908,014.75 - Step 5: Solve for x
x = 18,973,908,014.75/158,415.48 - Step 6: Final answer
x = 119,773.07
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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.