Finding the Fourth Proportional to 141,490.19, 195,257.69 and 76,959.95
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Solution
The fourth proportional to 141,490.19, 195,257.69 and 76,959.95 is: 106,205.39
Step by Step Solution
- Step 1: Write the proportion equation
141,490.19 : 195,257.69 = 76,959.95 : x - Step 2: Convert to fraction form
141,490.19/195,257.69 = 76,959.95/x - Step 3: Cross multiply
141,490.19x = 195,257.69 × 76,959.95 - Step 4: Simplify right side
141,490.19x = 15,027,021,536.19 - Step 5: Solve for x
x = 15,027,021,536.19/141,490.19 - Step 6: Final answer
x = 106,205.39
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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.