Finding the Fourth Proportional to 140,694.84, 194,158.84 and 77,032.62
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Solution
The fourth proportional to 140,694.84, 194,158.84 and 77,032.62 is: 106,304.99
Step by Step Solution
- Step 1: Write the proportion equation
140,694.84 : 194,158.84 = 77,032.62 : x - Step 2: Convert to fraction form
140,694.84/194,158.84 = 77,032.62/x - Step 3: Cross multiply
140,694.84x = 194,158.84 × 77,032.62 - Step 4: Simplify right side
140,694.84x = 14,956,564,141.36 - Step 5: Solve for x
x = 14,956,564,141.36/140,694.84 - Step 6: Final answer
x = 106,304.99
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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.