Finding the Fourth Proportional to 149,701.50, 206,226.27 and 128,121.95
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Solution
The fourth proportional to 149,701.50, 206,226.27 and 128,121.95 is: 176,498.65
Step by Step Solution
- Step 1: Write the proportion equation
149,701.50 : 206,226.27 = 128,121.95 : x - Step 2: Convert to fraction form
149,701.50/206,226.27 = 128,121.95/x - Step 3: Cross multiply
149,701.50x = 206,226.27 × 128,121.95 - Step 4: Simplify right side
149,701.50x = 26,422,112,369.19 - Step 5: Solve for x
x = 26,422,112,369.19/149,701.50 - Step 6: Final answer
x = 176,498.65
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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.