Finding the Fourth Proportional to 153,266.08, 211,505.16 and 86,198.08
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Solution
The fourth proportional to 153,266.08, 211,505.16 and 86,198.08 is: 118,952.21
Step by Step Solution
- Step 1: Write the proportion equation
153,266.08 : 211,505.16 = 86,198.08 : x - Step 2: Convert to fraction form
153,266.08/211,505.16 = 86,198.08/x - Step 3: Cross multiply
153,266.08x = 211,505.16 × 86,198.08 - Step 4: Simplify right side
153,266.08x = 18,231,338,702.09 - Step 5: Solve for x
x = 18,231,338,702.09/153,266.08 - Step 6: Final answer
x = 118,952.21
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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.