Finding the Fourth Proportional to 159,635.84, 239,523.36 and 85,677.44
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Solution
The fourth proportional to 159,635.84, 239,523.36 and 85,677.44 is: 128,553.51
Step by Step Solution
- Step 1: Write the proportion equation
159,635.84 : 239,523.36 = 85,677.44 : x - Step 2: Convert to fraction form
159,635.84/239,523.36 = 85,677.44/x - Step 3: Cross multiply
159,635.84x = 239,523.36 × 85,677.44 - Step 4: Simplify right side
159,635.84x = 20,521,748,305.00 - Step 5: Solve for x
x = 20,521,748,305.00/159,635.84 - Step 6: Final answer
x = 128,553.51
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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.