Finding the Fourth Proportional to 120,813.08, 166,722.44 and 67,098.09
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Solution
The fourth proportional to 120,813.08, 166,722.44 and 67,098.09 is: 92,595.57
Step by Step Solution
- Step 1: Write the proportion equation
120,813.08 : 166,722.44 = 67,098.09 : x - Step 2: Convert to fraction form
120,813.08/166,722.44 = 67,098.09/x - Step 3: Cross multiply
120,813.08x = 166,722.44 × 67,098.09 - Step 4: Simplify right side
120,813.08x = 11,186,756,323.44 - Step 5: Solve for x
x = 11,186,756,323.44/120,813.08 - Step 6: Final answer
x = 92,595.57
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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.