Finding the Fourth Proportional to 124,893.75, 172,353.51 and 68,305.26
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Solution
The fourth proportional to 124,893.75, 172,353.51 and 68,305.26 is: 94,261.33
Step by Step Solution
- Step 1: Write the proportion equation
124,893.75 : 172,353.51 = 68,305.26 : x - Step 2: Convert to fraction form
124,893.75/172,353.51 = 68,305.26/x - Step 3: Cross multiply
124,893.75x = 172,353.51 × 68,305.26 - Step 4: Simplify right side
124,893.75x = 11,772,651,312.46 - Step 5: Solve for x
x = 11,772,651,312.46/124,893.75 - Step 6: Final answer
x = 94,261.33
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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.