Finding the Fourth Proportional to 153,117.44, 211,311.64 and 85,149.62
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Solution
The fourth proportional to 153,117.44, 211,311.64 and 85,149.62 is: 117,511.80
Step by Step Solution
- Step 1: Write the proportion equation
153,117.44 : 211,311.64 = 85,149.62 : x - Step 2: Convert to fraction form
153,117.44/211,311.64 = 85,149.62/x - Step 3: Cross multiply
153,117.44x = 211,311.64 × 85,149.62 - Step 4: Simplify right side
153,117.44x = 17,993,105,847.58 - Step 5: Solve for x
x = 17,993,105,847.58/153,117.44 - Step 6: Final answer
x = 117,511.80
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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.