Finding the Fourth Proportional to 153,197.55, 211,409.55 and 85,213.08
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Solution
The fourth proportional to 153,197.55, 211,409.55 and 85,213.08 is: 117,592.34
Step by Step Solution
- Step 1: Write the proportion equation
153,197.55 : 211,409.55 = 85,213.08 : x - Step 2: Convert to fraction form
153,197.55/211,409.55 = 85,213.08/x - Step 3: Cross multiply
153,197.55x = 211,409.55 × 85,213.08 - Step 4: Simplify right side
153,197.55x = 18,014,858,896.91 - Step 5: Solve for x
x = 18,014,858,896.91/153,197.55 - Step 6: Final answer
x = 117,592.34
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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.