Finding the Fourth Proportional to 163,558.80, 245,494.80 and 84,729.60
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Solution
The fourth proportional to 163,558.80, 245,494.80 and 84,729.60 is: 127,175.52
Step by Step Solution
- Step 1: Write the proportion equation
163,558.80 : 245,494.80 = 84,729.60 : x - Step 2: Convert to fraction form
163,558.80/245,494.80 = 84,729.60/x - Step 3: Cross multiply
163,558.80x = 245,494.80 × 84,729.60 - Step 4: Simplify right side
163,558.80x = 20,800,676,206.08 - Step 5: Solve for x
x = 20,800,676,206.08/163,558.80 - Step 6: Final answer
x = 127,175.52
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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.