Finding the Fourth Proportional to 118,222.14, 163,170.84 and 72,289.64
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Solution
The fourth proportional to 118,222.14, 163,170.84 and 72,289.64 is: 99,774.55
Step by Step Solution
- Step 1: Write the proportion equation
118,222.14 : 163,170.84 = 72,289.64 : x - Step 2: Convert to fraction form
118,222.14/163,170.84 = 72,289.64/x - Step 3: Cross multiply
118,222.14x = 163,170.84 × 72,289.64 - Step 4: Simplify right side
118,222.14x = 11,795,560,466.24 - Step 5: Solve for x
x = 11,795,560,466.24/118,222.14 - Step 6: Final answer
x = 99,774.55
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.