Finding the Fourth Proportional to 88,122.60, 132,378.30 and 84,817.80
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Solution
The fourth proportional to 88,122.60, 132,378.30 and 84,817.80 is: 127,413.81
Step by Step Solution
- Step 1: Write the proportion equation
88,122.60 : 132,378.30 = 84,817.80 : x - Step 2: Convert to fraction form
88,122.60/132,378.30 = 84,817.80/x - Step 3: Cross multiply
88,122.60x = 132,378.30 × 84,817.80 - Step 4: Simplify right side
88,122.60x = 11,228,036,173.74 - Step 5: Solve for x
x = 11,228,036,173.74/88,122.60 - Step 6: Final answer
x = 127,413.81
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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.