Finding the Fourth Proportional to 137,193.08, 205,228.24 and 103,663.92
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Solution
The fourth proportional to 137,193.08, 205,228.24 and 103,663.92 is: 155,071.70
Step by Step Solution
- Step 1: Write the proportion equation
137,193.08 : 205,228.24 = 103,663.92 : x - Step 2: Convert to fraction form
137,193.08/205,228.24 = 103,663.92/x - Step 3: Cross multiply
137,193.08x = 205,228.24 × 103,663.92 - Step 4: Simplify right side
137,193.08x = 21,274,763,853.10 - Step 5: Solve for x
x = 21,274,763,853.10/137,193.08 - Step 6: Final answer
x = 155,071.70
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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.