Finding the Fourth Proportional to 117,485.08, 162,129.53 and 63,770.09
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Solution
The fourth proportional to 117,485.08, 162,129.53 and 63,770.09 is: 88,002.79
Step by Step Solution
- Step 1: Write the proportion equation
117,485.08 : 162,129.53 = 63,770.09 : x - Step 2: Convert to fraction form
117,485.08/162,129.53 = 63,770.09/x - Step 3: Cross multiply
117,485.08x = 162,129.53 × 63,770.09 - Step 4: Simplify right side
117,485.08x = 10,339,014,068.54 - Step 5: Solve for x
x = 10,339,014,068.54/117,485.08 - Step 6: Final answer
x = 88,002.79
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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.