Finding the Fourth Proportional to 108,687.96, 149,985.84 and 60,289.68
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Solution
The fourth proportional to 108,687.96, 149,985.84 and 60,289.68 is: 83,197.79
Step by Step Solution
- Step 1: Write the proportion equation
108,687.96 : 149,985.84 = 60,289.68 : x - Step 2: Convert to fraction form
108,687.96/149,985.84 = 60,289.68/x - Step 3: Cross multiply
108,687.96x = 149,985.84 × 60,289.68 - Step 4: Simplify right side
108,687.96x = 9,042,598,298.13 - Step 5: Solve for x
x = 9,042,598,298.13/108,687.96 - Step 6: Final answer
x = 83,197.79
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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.