Finding the Fourth Proportional to 125,943.80, 188,478.30 and 86,577.80
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Solution
The fourth proportional to 125,943.80, 188,478.30 and 86,577.80 is: 129,566.02
Step by Step Solution
- Step 1: Write the proportion equation
125,943.80 : 188,478.30 = 86,577.80 : x - Step 2: Convert to fraction form
125,943.80/188,478.30 = 86,577.80/x - Step 3: Cross multiply
125,943.80x = 188,478.30 × 86,577.80 - Step 4: Simplify right side
125,943.80x = 16,318,036,561.74 - Step 5: Solve for x
x = 16,318,036,561.74/125,943.80 - Step 6: Final answer
x = 129,566.02
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.