Finding the Fourth Proportional to 122,120.03, 168,536.12 and 68,416.08
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Solution
The fourth proportional to 122,120.03, 168,536.12 and 68,416.08 is: 94,420.06
Step by Step Solution
- Step 1: Write the proportion equation
122,120.03 : 168,536.12 = 68,416.08 : x - Step 2: Convert to fraction form
122,120.03/168,536.12 = 68,416.08/x - Step 3: Cross multiply
122,120.03x = 168,536.12 × 68,416.08 - Step 4: Simplify right side
122,120.03x = 11,530,580,326.73 - Step 5: Solve for x
x = 11,530,580,326.73/122,120.03 - Step 6: Final answer
x = 94,420.06
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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.