Finding the Fourth Proportional to 117,689.18, 176,434.26 and 51,079.26
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Solution
The fourth proportional to 117,689.18, 176,434.26 and 51,079.26 is: 76,575.70
Step by Step Solution
- Step 1: Write the proportion equation
117,689.18 : 176,434.26 = 51,079.26 : x - Step 2: Convert to fraction form
117,689.18/176,434.26 = 51,079.26/x - Step 3: Cross multiply
117,689.18x = 176,434.26 × 51,079.26 - Step 4: Simplify right side
117,689.18x = 9,012,131,439.45 - Step 5: Solve for x
x = 9,012,131,439.45/117,689.18 - Step 6: Final answer
x = 76,575.70
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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.