Finding the Fourth Proportional to 108,713.20, 163,069.80 and 73,283.80
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Solution
The fourth proportional to 108,713.20, 163,069.80 and 73,283.80 is: 109,925.70
Step by Step Solution
- Step 1: Write the proportion equation
108,713.20 : 163,069.80 = 73,283.80 : x - Step 2: Convert to fraction form
108,713.20/163,069.80 = 73,283.80/x - Step 3: Cross multiply
108,713.20x = 163,069.80 × 73,283.80 - Step 4: Simplify right side
108,713.20x = 11,950,374,609.24 - Step 5: Solve for x
x = 11,950,374,609.24/108,713.20 - Step 6: Final answer
x = 109,925.70
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1.5x scale
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.