Finding the Fourth Proportional to 157,019.01, 216,680.00 and 85,398.99
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Solution
The fourth proportional to 157,019.01, 216,680.00 and 85,398.99 is: 117,847.21
Step by Step Solution
- Step 1: Write the proportion equation
157,019.01 : 216,680.00 = 85,398.99 : x - Step 2: Convert to fraction form
157,019.01/216,680.00 = 85,398.99/x - Step 3: Cross multiply
157,019.01x = 216,680.00 × 85,398.99 - Step 4: Simplify right side
157,019.01x = 18,504,252,726.21 - Step 5: Solve for x
x = 18,504,252,726.21/157,019.01 - Step 6: Final answer
x = 117,847.21
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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.