Finding the Fourth Proportional to 132,187.80, 197,876.70 and 72,841.80
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Solution
The fourth proportional to 132,187.80, 197,876.70 and 72,841.80 is: 109,039.53
Step by Step Solution
- Step 1: Write the proportion equation
132,187.80 : 197,876.70 = 72,841.80 : x - Step 2: Convert to fraction form
132,187.80/197,876.70 = 72,841.80/x - Step 3: Cross multiply
132,187.80x = 197,876.70 × 72,841.80 - Step 4: Simplify right side
132,187.80x = 14,413,695,006.06 - Step 5: Solve for x
x = 14,413,695,006.06/132,187.80 - Step 6: Final answer
x = 109,039.53
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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.