Finding the Fourth Proportional to 102,618.19, 141,611.76 and 57,296.95
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Solution
The fourth proportional to 102,618.19, 141,611.76 and 57,296.95 is: 79,069.03
Step by Step Solution
- Step 1: Write the proportion equation
102,618.19 : 141,611.76 = 57,296.95 : x - Step 2: Convert to fraction form
102,618.19/141,611.76 = 57,296.95/x - Step 3: Cross multiply
102,618.19x = 141,611.76 × 57,296.95 - Step 4: Simplify right side
102,618.19x = 8,113,920,937.59 - Step 5: Solve for x
x = 8,113,920,937.59/102,618.19 - Step 6: Final answer
x = 79,069.03
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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.