Finding the Fourth Proportional to 163,543.90, 245,425.20 and 74,751.70
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Solution
The fourth proportional to 163,543.90, 245,425.20 and 74,751.70 is: 112,177.53
Step by Step Solution
- Step 1: Write the proportion equation
163,543.90 : 245,425.20 = 74,751.70 : x - Step 2: Convert to fraction form
163,543.90/245,425.20 = 74,751.70/x - Step 3: Cross multiply
163,543.90x = 245,425.20 × 74,751.70 - Step 4: Simplify right side
163,543.90x = 18,345,950,922.84 - Step 5: Solve for x
x = 18,345,950,922.84/163,543.90 - Step 6: Final answer
x = 112,177.53
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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.