Finding the Fourth Proportional to 110,973.96, 166,502.96 and 66,631.68
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Solution
The fourth proportional to 110,973.96, 166,502.96 and 66,631.68 is: 99,972.75
Step by Step Solution
- Step 1: Write the proportion equation
110,973.96 : 166,502.96 = 66,631.68 : x - Step 2: Convert to fraction form
110,973.96/166,502.96 = 66,631.68/x - Step 3: Cross multiply
110,973.96x = 166,502.96 × 66,631.68 - Step 4: Simplify right side
110,973.96x = 11,094,371,949.77 - Step 5: Solve for x
x = 11,094,371,949.77/110,973.96 - Step 6: Final answer
x = 99,972.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.