Finding the Fourth Proportional to 163,668.90, 245,612.70 and 74,876.70
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Solution
The fourth proportional to 163,668.90, 245,612.70 and 74,876.70 is: 112,365.08
Step by Step Solution
- Step 1: Write the proportion equation
163,668.90 : 245,612.70 = 74,876.70 : x - Step 2: Convert to fraction form
163,668.90/245,612.70 = 74,876.70/x - Step 3: Cross multiply
163,668.90x = 245,612.70 × 74,876.70 - Step 4: Simplify right side
163,668.90x = 18,390,668,454.09 - Step 5: Solve for x
x = 18,390,668,454.09/163,668.90 - Step 6: Final answer
x = 112,365.08
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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.