Finding the Fourth Proportional to 140,352.40, 193,664.84 and 79,925.52
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Solution
The fourth proportional to 140,352.40, 193,664.84 and 79,925.52 is: 110,284.99
Step by Step Solution
- Step 1: Write the proportion equation
140,352.40 : 193,664.84 = 79,925.52 : x - Step 2: Convert to fraction form
140,352.40/193,664.84 = 79,925.52/x - Step 3: Cross multiply
140,352.40x = 193,664.84 × 79,925.52 - Step 4: Simplify right side
140,352.40x = 15,478,763,042.72 - Step 5: Solve for x
x = 15,478,763,042.72/140,352.40 - Step 6: Final answer
x = 110,284.99
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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.