Finding the Fourth Proportional to 122,614.22, 169,202.18 and 71,631.68
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Solution
The fourth proportional to 122,614.22, 169,202.18 and 71,631.68 is: 98,848.53
Step by Step Solution
- Step 1: Write the proportion equation
122,614.22 : 169,202.18 = 71,631.68 : x - Step 2: Convert to fraction form
122,614.22/169,202.18 = 71,631.68/x - Step 3: Cross multiply
122,614.22x = 169,202.18 × 71,631.68 - Step 4: Simplify right side
122,614.22x = 12,120,235,746.13 - Step 5: Solve for x
x = 12,120,235,746.13/122,614.22 - Step 6: Final answer
x = 98,848.53
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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.