Finding the Fourth Proportional to 176,138.82, 243,114.80 and 108,171.99
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Solution
The fourth proportional to 176,138.82, 243,114.80 and 108,171.99 is: 149,303.89
Step by Step Solution
- Step 1: Write the proportion equation
176,138.82 : 243,114.80 = 108,171.99 : x - Step 2: Convert to fraction form
176,138.82/243,114.80 = 108,171.99/x - Step 3: Cross multiply
176,138.82x = 243,114.80 × 108,171.99 - Step 4: Simplify right side
176,138.82x = 26,298,211,714.45 - Step 5: Solve for x
x = 26,298,211,714.45/176,138.82 - Step 6: Final answer
x = 149,303.89
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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.