Finding the Fourth Proportional to 88,261.26, 121,683.51 and 73,098.06
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Solution
The fourth proportional to 88,261.26, 121,683.51 and 73,098.06 is: 100,778.40
Step by Step Solution
- Step 1: Write the proportion equation
88,261.26 : 121,683.51 = 73,098.06 : x - Step 2: Convert to fraction form
88,261.26/121,683.51 = 73,098.06/x - Step 3: Cross multiply
88,261.26x = 121,683.51 × 73,098.06 - Step 4: Simplify right side
88,261.26x = 8,894,828,514.99 - Step 5: Solve for x
x = 8,894,828,514.99/88,261.26 - Step 6: Final answer
x = 100,778.40
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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.