Finding the Fourth Proportional to 122,691.08, 169,312.67 and 68,976.33
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Solution
The fourth proportional to 122,691.08, 169,312.67 and 68,976.33 is: 95,186.76
Step by Step Solution
- Step 1: Write the proportion equation
122,691.08 : 169,312.67 = 68,976.33 : x - Step 2: Convert to fraction form
122,691.08/169,312.67 = 68,976.33/x - Step 3: Cross multiply
122,691.08x = 169,312.67 × 68,976.33 - Step 4: Simplify right side
122,691.08x = 11,678,566,254.22 - Step 5: Solve for x
x = 11,678,566,254.22/122,691.08 - Step 6: Final answer
x = 95,186.76
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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.