Finding the Fourth Proportional to 157,183.04, 216,915.36 and 85,565.12
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Solution
The fourth proportional to 157,183.04, 216,915.36 and 85,565.12 is: 118,081.37
Step by Step Solution
- Step 1: Write the proportion equation
157,183.04 : 216,915.36 = 85,565.12 : x - Step 2: Convert to fraction form
157,183.04/216,915.36 = 85,565.12/x - Step 3: Cross multiply
157,183.04x = 216,915.36 × 85,565.12 - Step 4: Simplify right side
157,183.04x = 18,560,388,808.24 - Step 5: Solve for x
x = 18,560,388,808.24/157,183.04 - Step 6: Final answer
x = 118,081.37
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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.