Finding the Fourth Proportional to 104,930.08, 157,502.64 and 81,809.44
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Solution
The fourth proportional to 104,930.08, 157,502.64 and 81,809.44 is: 122,797.99
Step by Step Solution
- Step 1: Write the proportion equation
104,930.08 : 157,502.64 = 81,809.44 : x - Step 2: Convert to fraction form
104,930.08/157,502.64 = 81,809.44/x - Step 3: Cross multiply
104,930.08x = 157,502.64 × 81,809.44 - Step 4: Simplify right side
104,930.08x = 12,885,202,776.92 - Step 5: Solve for x
x = 12,885,202,776.92/104,930.08 - Step 6: Final answer
x = 122,797.99
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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.