Finding the Fourth Proportional to 159,119.12, 219,581.12 and 87,497.91
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Solution
The fourth proportional to 159,119.12, 219,581.12 and 87,497.91 is: 120,745.32
Step by Step Solution
- Step 1: Write the proportion equation
159,119.12 : 219,581.12 = 87,497.91 : x - Step 2: Convert to fraction form
159,119.12/219,581.12 = 87,497.91/x - Step 3: Cross multiply
159,119.12x = 219,581.12 × 87,497.91 - Step 4: Simplify right side
159,119.12x = 19,212,888,637.97 - Step 5: Solve for x
x = 19,212,888,637.97/159,119.12 - Step 6: Final answer
x = 120,745.32
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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.