Finding the Fourth Proportional to 158,223.21, 218,346.18 and 85,624.42
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Solution
The fourth proportional to 158,223.21, 218,346.18 and 85,624.42 is: 118,160.70
Step by Step Solution
- Step 1: Write the proportion equation
158,223.21 : 218,346.18 = 85,624.42 : x - Step 2: Convert to fraction form
158,223.21/218,346.18 = 85,624.42/x - Step 3: Cross multiply
158,223.21x = 218,346.18 × 85,624.42 - Step 4: Simplify right side
158,223.21x = 18,695,765,021.72 - Step 5: Solve for x
x = 18,695,765,021.72/158,223.21 - Step 6: Final answer
x = 118,160.70
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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.