Finding the Fourth Proportional to 168,634.60, 232,688.12 and 99,714.48
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Solution
The fourth proportional to 168,634.60, 232,688.12 and 99,714.48 is: 137,589.65
Step by Step Solution
- Step 1: Write the proportion equation
168,634.60 : 232,688.12 = 99,714.48 : x - Step 2: Convert to fraction form
168,634.60/232,688.12 = 99,714.48/x - Step 3: Cross multiply
168,634.60x = 232,688.12 × 99,714.48 - Step 4: Simplify right side
168,634.60x = 23,202,374,887.98 - Step 5: Solve for x
x = 23,202,374,887.98/168,634.60 - Step 6: Final answer
x = 137,589.65
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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.