Finding the Fourth Proportional to 125,893.80, 188,403.30 and 86,527.80
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Solution
The fourth proportional to 125,893.80, 188,403.30 and 86,527.80 is: 129,491.07
Step by Step Solution
- Step 1: Write the proportion equation
125,893.80 : 188,403.30 = 86,527.80 : x - Step 2: Convert to fraction form
125,893.80/188,403.30 = 86,527.80/x - Step 3: Cross multiply
125,893.80x = 188,403.30 × 86,527.80 - Step 4: Simplify right side
125,893.80x = 16,302,123,061.74 - Step 5: Solve for x
x = 16,302,123,061.74/125,893.80 - Step 6: Final answer
x = 129,491.07
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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.