Finding the Fourth Proportional to 154,407.06, 212,639.58 and 132,721.74
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Solution
The fourth proportional to 154,407.06, 212,639.58 and 132,721.74 is: 182,775.94
Step by Step Solution
- Step 1: Write the proportion equation
154,407.06 : 212,639.58 = 132,721.74 : x - Step 2: Convert to fraction form
154,407.06/212,639.58 = 132,721.74/x - Step 3: Cross multiply
154,407.06x = 212,639.58 × 132,721.74 - Step 4: Simplify right side
154,407.06x = 28,221,895,050.47 - Step 5: Solve for x
x = 28,221,895,050.47/154,407.06 - Step 6: Final answer
x = 182,775.94
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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.