Finding the Fourth Proportional to 129,884.90, 194,827.35 and 122,011.70
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Solution
The fourth proportional to 129,884.90, 194,827.35 and 122,011.70 is: 183,017.55
Step by Step Solution
- Step 1: Write the proportion equation
129,884.90 : 194,827.35 = 122,011.70 : x - Step 2: Convert to fraction form
129,884.90/194,827.35 = 122,011.70/x - Step 3: Cross multiply
129,884.90x = 194,827.35 × 122,011.70 - Step 4: Simplify right side
129,884.90x = 23,771,216,180.00 - Step 5: Solve for x
x = 23,771,216,180.00/129,884.90 - Step 6: Final answer
x = 183,017.55
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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.