Finding the Fourth Proportional to 124,972.50, 172,462.05 and 68,383.88
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Solution
The fourth proportional to 124,972.50, 172,462.05 and 68,383.88 is: 94,369.75
Step by Step Solution
- Step 1: Write the proportion equation
124,972.50 : 172,462.05 = 68,383.88 : x - Step 2: Convert to fraction form
124,972.50/172,462.05 = 68,383.88/x - Step 3: Cross multiply
124,972.50x = 172,462.05 × 68,383.88 - Step 4: Simplify right side
124,972.50x = 11,793,624,131.75 - Step 5: Solve for x
x = 11,793,624,131.75/124,972.50 - Step 6: Final answer
x = 94,369.75
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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.