Finding the Fourth Proportional to 163,909.80, 245,864.70 and 108,505.80
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Solution
The fourth proportional to 163,909.80, 245,864.70 and 108,505.80 is: 162,758.70
Step by Step Solution
- Step 1: Write the proportion equation
163,909.80 : 245,864.70 = 108,505.80 : x - Step 2: Convert to fraction form
163,909.80/245,864.70 = 108,505.80/x - Step 3: Cross multiply
163,909.80x = 245,864.70 × 108,505.80 - Step 4: Simplify right side
163,909.80x = 26,677,745,965.26 - Step 5: Solve for x
x = 26,677,745,965.26/163,909.80 - Step 6: Final answer
x = 162,758.70
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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.