Finding the Fourth Proportional to 125,169.68, 172,731.48 and 68,579.84
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Solution
The fourth proportional to 125,169.68, 172,731.48 and 68,579.84 is: 94,638.71
Step by Step Solution
- Step 1: Write the proportion equation
125,169.68 : 172,731.48 = 68,579.84 : x - Step 2: Convert to fraction form
125,169.68/172,731.48 = 68,579.84/x - Step 3: Cross multiply
125,169.68x = 172,731.48 × 68,579.84 - Step 4: Simplify right side
125,169.68x = 11,845,897,261.36 - Step 5: Solve for x
x = 11,845,897,261.36/125,169.68 - Step 6: Final answer
x = 94,638.71
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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.