Finding the Fourth Proportional to 124,915.75, 172,386.51 and 68,327.13
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Solution
The fourth proportional to 124,915.75, 172,386.51 and 68,327.13 is: 94,292.96
Step by Step Solution
- Step 1: Write the proportion equation
124,915.75 : 172,386.51 = 68,327.13 : x - Step 2: Convert to fraction form
124,915.75/172,386.51 = 68,327.13/x - Step 3: Cross multiply
124,915.75x = 172,386.51 × 68,327.13 - Step 4: Simplify right side
124,915.75x = 11,778,675,479.02 - Step 5: Solve for x
x = 11,778,675,479.02/124,915.75 - Step 6: Final answer
x = 94,292.96
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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.