Finding the Fourth Proportional to 141,721.76, 212,083.35 and 88,438.82
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Solution
The fourth proportional to 141,721.76, 212,083.35 and 88,438.82 is: 132,346.65
Step by Step Solution
- Step 1: Write the proportion equation
141,721.76 : 212,083.35 = 88,438.82 : x - Step 2: Convert to fraction form
141,721.76/212,083.35 = 88,438.82/x - Step 3: Cross multiply
141,721.76x = 212,083.35 × 88,438.82 - Step 4: Simplify right side
141,721.76x = 18,756,400,155.23 - Step 5: Solve for x
x = 18,756,400,155.23/141,721.76 - Step 6: Final answer
x = 132,346.65
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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.