Finding the Fourth Proportional to 156,685.88, 216,229.05 and 88,701.09
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Solution
The fourth proportional to 156,685.88, 216,229.05 and 88,701.09 is: 122,408.94
Step by Step Solution
- Step 1: Write the proportion equation
156,685.88 : 216,229.05 = 88,701.09 : x - Step 2: Convert to fraction form
156,685.88/216,229.05 = 88,701.09/x - Step 3: Cross multiply
156,685.88x = 216,229.05 × 88,701.09 - Step 4: Simplify right side
156,685.88x = 19,179,752,424.66 - Step 5: Solve for x
x = 19,179,752,424.66/156,685.88 - Step 6: Final answer
x = 122,408.94
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1.5x scale
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.