Finding the Fourth Proportional to 122,468.13, 168,996.68 and 68,742.77
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Solution
The fourth proportional to 122,468.13, 168,996.68 and 68,742.77 is: 94,859.77
Step by Step Solution
- Step 1: Write the proportion equation
122,468.13 : 168,996.68 = 68,742.77 : x - Step 2: Convert to fraction form
122,468.13/168,996.68 = 68,742.77/x - Step 3: Cross multiply
122,468.13x = 168,996.68 × 68,742.77 - Step 4: Simplify right side
122,468.13x = 11,617,298,973.09 - Step 5: Solve for x
x = 11,617,298,973.09/122,468.13 - Step 6: Final answer
x = 94,859.77
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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.