Finding the Fourth Proportional to 145,159.84, 217,737.83 and 70,286.68
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Solution
The fourth proportional to 145,159.84, 217,737.83 and 70,286.68 is: 105,429.09
Step by Step Solution
- Step 1: Write the proportion equation
145,159.84 : 217,737.83 = 70,286.68 : x - Step 2: Convert to fraction form
145,159.84/217,737.83 = 70,286.68/x - Step 3: Cross multiply
145,159.84x = 217,737.83 × 70,286.68 - Step 4: Simplify right side
145,159.84x = 15,304,069,181.10 - Step 5: Solve for x
x = 15,304,069,181.10/145,159.84 - Step 6: Final answer
x = 105,429.09
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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.