Finding the Fourth Proportional to 153,186.13, 211,310.58 and 91,916.47
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Solution
The fourth proportional to 153,186.13, 211,310.58 and 91,916.47 is: 126,792.96
Step by Step Solution
- Step 1: Write the proportion equation
153,186.13 : 211,310.58 = 91,916.47 : x - Step 2: Convert to fraction form
153,186.13/211,310.58 = 91,916.47/x - Step 3: Cross multiply
153,186.13x = 211,310.58 × 91,916.47 - Step 4: Simplify right side
153,186.13x = 19,422,922,587.25 - Step 5: Solve for x
x = 19,422,922,587.25/153,186.13 - Step 6: Final answer
x = 126,792.96
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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.