Finding the Fourth Proportional to 117,176.63, 161,703.61 and 63,461.61
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Solution
The fourth proportional to 117,176.63, 161,703.61 and 63,461.61 is: 87,576.95
Step by Step Solution
- Step 1: Write the proportion equation
117,176.63 : 161,703.61 = 63,461.61 : x - Step 2: Convert to fraction form
117,176.63/161,703.61 = 63,461.61/x - Step 3: Cross multiply
117,176.63x = 161,703.61 × 63,461.61 - Step 4: Simplify right side
117,176.63x = 10,261,971,318.23 - Step 5: Solve for x
x = 10,261,971,318.23/117,176.63 - Step 6: Final answer
x = 87,576.95
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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.