Finding the Fourth Proportional to 157,395.18, 217,198.99 and 85,773.66
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Solution
The fourth proportional to 157,395.18, 217,198.99 and 85,773.66 is: 118,364.19
Step by Step Solution
- Step 1: Write the proportion equation
157,395.18 : 217,198.99 = 85,773.66 : x - Step 2: Convert to fraction form
157,395.18/217,198.99 = 85,773.66/x - Step 3: Cross multiply
157,395.18x = 217,198.99 × 85,773.66 - Step 4: Simplify right side
157,395.18x = 18,629,952,320.60 - Step 5: Solve for x
x = 18,629,952,320.60/157,395.18 - Step 6: Final answer
x = 118,364.19
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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.