Finding the Fourth Proportional to 149,184.56, 205,874.70 and 81,201.80
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Solution
The fourth proportional to 149,184.56, 205,874.70 and 81,201.80 is: 112,058.49
Step by Step Solution
- Step 1: Write the proportion equation
149,184.56 : 205,874.70 = 81,201.80 : x - Step 2: Convert to fraction form
149,184.56/205,874.70 = 81,201.80/x - Step 3: Cross multiply
149,184.56x = 205,874.70 × 81,201.80 - Step 4: Simplify right side
149,184.56x = 16,717,396,214.46 - Step 5: Solve for x
x = 16,717,396,214.46/149,184.56 - Step 6: Final answer
x = 112,058.49
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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.