Finding the Fourth Proportional to 139,909.14, 209,861.55 and 34,729.02
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Solution
The fourth proportional to 139,909.14, 209,861.55 and 34,729.02 is: 52,092.99
Step by Step Solution
- Step 1: Write the proportion equation
139,909.14 : 209,861.55 = 34,729.02 : x - Step 2: Convert to fraction form
139,909.14/209,861.55 = 34,729.02/x - Step 3: Cross multiply
139,909.14x = 209,861.55 × 34,729.02 - Step 4: Simplify right side
139,909.14x = 7,288,285,967.18 - Step 5: Solve for x
x = 7,288,285,967.18/139,909.14 - Step 6: Final answer
x = 52,092.99
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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.