Finding the Fourth Proportional to 158,523.48, 218,763.96 and 86,904.96
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Solution
The fourth proportional to 158,523.48, 218,763.96 and 86,904.96 is: 119,929.70
Step by Step Solution
- Step 1: Write the proportion equation
158,523.48 : 218,763.96 = 86,904.96 : x - Step 2: Convert to fraction form
158,523.48/218,763.96 = 86,904.96/x - Step 3: Cross multiply
158,523.48x = 218,763.96 × 86,904.96 - Step 4: Simplify right side
158,523.48x = 19,011,673,193.24 - Step 5: Solve for x
x = 19,011,673,193.24/158,523.48 - Step 6: Final answer
x = 119,929.70
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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.