Finding the Fourth Proportional to 89,146.18, 133,725.87 and 29,981.62
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Solution
The fourth proportional to 89,146.18, 133,725.87 and 29,981.62 is: 44,974.65
Step by Step Solution
- Step 1: Write the proportion equation
89,146.18 : 133,725.87 = 29,981.62 : x - Step 2: Convert to fraction form
89,146.18/133,725.87 = 29,981.62/x - Step 3: Cross multiply
89,146.18x = 133,725.87 × 29,981.62 - Step 4: Simplify right side
89,146.18x = 4,009,318,218.51 - Step 5: Solve for x
x = 4,009,318,218.51/89,146.18 - Step 6: Final answer
x = 44,974.65
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1.5x scale
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.