Finding the Fourth Proportional to 128,862.14, 193,306.48 and 44,622.14
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Solution
The fourth proportional to 128,862.14, 193,306.48 and 44,622.14 is: 66,937.81
Step by Step Solution
- Step 1: Write the proportion equation
128,862.14 : 193,306.48 = 44,622.14 : x - Step 2: Convert to fraction form
128,862.14/193,306.48 = 44,622.14/x - Step 3: Cross multiply
128,862.14x = 193,306.48 × 44,622.14 - Step 4: Simplify right side
128,862.14x = 8,625,748,813.47 - Step 5: Solve for x
x = 8,625,748,813.47/128,862.14 - Step 6: Final answer
x = 66,937.81
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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.