Finding the Fourth Proportional to 158,358.33, 218,534.16 and 85,760.99
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Solution
The fourth proportional to 158,358.33, 218,534.16 and 85,760.99 is: 118,349.99
Step by Step Solution
- Step 1: Write the proportion equation
158,358.33 : 218,534.16 = 85,760.99 : x - Step 2: Convert to fraction form
158,358.33/218,534.16 = 85,760.99/x - Step 3: Cross multiply
158,358.33x = 218,534.16 × 85,760.99 - Step 4: Simplify right side
158,358.33x = 18,741,706,456.75 - Step 5: Solve for x
x = 18,741,706,456.75/158,358.33 - Step 6: Final answer
x = 118,349.99
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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.