Finding the Fourth Proportional to 117,433.18, 162,135.84 and 69,701.91
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Solution
The fourth proportional to 117,433.18, 162,135.84 and 69,701.91 is: 96,234.96
Step by Step Solution
- Step 1: Write the proportion equation
117,433.18 : 162,135.84 = 69,701.91 : x - Step 2: Convert to fraction form
117,433.18/162,135.84 = 69,701.91/x - Step 3: Cross multiply
117,433.18x = 162,135.84 × 69,701.91 - Step 4: Simplify right side
117,433.18x = 11,301,177,727.45 - Step 5: Solve for x
x = 11,301,177,727.45/117,433.18 - Step 6: Final answer
x = 96,234.96
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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.