Finding the Fourth Proportional to 124,972.24, 172,461.81 and 68,383.62
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Solution
The fourth proportional to 124,972.24, 172,461.81 and 68,383.62 is: 94,369.45
Step by Step Solution
- Step 1: Write the proportion equation
124,972.24 : 172,461.81 = 68,383.62 : x - Step 2: Convert to fraction form
124,972.24/172,461.81 = 68,383.62/x - Step 3: Cross multiply
124,972.24x = 172,461.81 × 68,383.62 - Step 4: Simplify right side
124,972.24x = 11,793,562,266.28 - Step 5: Solve for x
x = 11,793,562,266.28/124,972.24 - Step 6: Final answer
x = 94,369.45
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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.