Finding the Fourth Proportional to 145,834.63, 201,251.79 and 78,766.63
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Solution
The fourth proportional to 145,834.63, 201,251.79 and 78,766.63 is: 108,697.95
Step by Step Solution
- Step 1: Write the proportion equation
145,834.63 : 201,251.79 = 78,766.63 : x - Step 2: Convert to fraction form
145,834.63/201,251.79 = 78,766.63/x - Step 3: Cross multiply
145,834.63x = 201,251.79 × 78,766.63 - Step 4: Simplify right side
145,834.63x = 15,851,924,776.64 - Step 5: Solve for x
x = 15,851,924,776.64/145,834.63 - Step 6: Final answer
x = 108,697.95
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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.