Finding the Fourth Proportional to 79,204.99, 118,512.19 and 78,319.21
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Solution
The fourth proportional to 79,204.99, 118,512.19 and 78,319.21 is: 117,186.82
Step by Step Solution
- Step 1: Write the proportion equation
79,204.99 : 118,512.19 = 78,319.21 : x - Step 2: Convert to fraction form
79,204.99/118,512.19 = 78,319.21/x - Step 3: Cross multiply
79,204.99x = 118,512.19 × 78,319.21 - Step 4: Simplify right side
79,204.99x = 9,281,781,096.17 - Step 5: Solve for x
x = 9,281,781,096.17/79,204.99 - Step 6: Final answer
x = 117,186.82
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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.