Finding the Fourth Proportional to 153,079.07, 211,234.81 and 88,537.96
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Solution
The fourth proportional to 153,079.07, 211,234.81 and 88,537.96 is: 122,174.12
Step by Step Solution
- Step 1: Write the proportion equation
153,079.07 : 211,234.81 = 88,537.96 : x - Step 2: Convert to fraction form
153,079.07/211,234.81 = 88,537.96/x - Step 3: Cross multiply
153,079.07x = 211,234.81 × 88,537.96 - Step 4: Simplify right side
153,079.07x = 18,702,299,616.11 - Step 5: Solve for x
x = 18,702,299,616.11/153,079.07 - Step 6: Final answer
x = 122,174.12
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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.