Finding the Fourth Proportional to 117,876.57, 162,643.09 and 98,833.26
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Solution
The fourth proportional to 117,876.57, 162,643.09 and 98,833.26 is: 136,367.62
Step by Step Solution
- Step 1: Write the proportion equation
117,876.57 : 162,643.09 = 98,833.26 : x - Step 2: Convert to fraction form
117,876.57/162,643.09 = 98,833.26/x - Step 3: Cross multiply
117,876.57x = 162,643.09 × 98,833.26 - Step 4: Simplify right side
117,876.57x = 16,074,547,349.31 - Step 5: Solve for x
x = 16,074,547,349.31/117,876.57 - Step 6: Final answer
x = 136,367.62
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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.