Finding the Fourth Proportional to 163,930.60, 246,126.30 and 128,909.80
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Solution
The fourth proportional to 163,930.60, 246,126.30 and 128,909.80 is: 193,545.88
Step by Step Solution
- Step 1: Write the proportion equation
163,930.60 : 246,126.30 = 128,909.80 : x - Step 2: Convert to fraction form
163,930.60/246,126.30 = 128,909.80/x - Step 3: Cross multiply
163,930.60x = 246,126.30 × 128,909.80 - Step 4: Simplify right side
163,930.60x = 31,728,092,107.74 - Step 5: Solve for x
x = 31,728,092,107.74/163,930.60 - Step 6: Final answer
x = 193,545.88
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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.