Finding the Fourth Proportional to 122,530.11, 169,095.36 and 68,816.29
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Solution
The fourth proportional to 122,530.11, 169,095.36 and 68,816.29 is: 94,968.62
Step by Step Solution
- Step 1: Write the proportion equation
122,530.11 : 169,095.36 = 68,816.29 : x - Step 2: Convert to fraction form
122,530.11/169,095.36 = 68,816.29/x - Step 3: Cross multiply
122,530.11x = 169,095.36 × 68,816.29 - Step 4: Simplify right side
122,530.11x = 11,636,515,331.41 - Step 5: Solve for x
x = 11,636,515,331.41/122,530.11 - Step 6: Final answer
x = 94,968.62
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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.