Finding the Fourth Proportional to 115,882.21, 159,919.86 and 70,562.08
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Solution
The fourth proportional to 115,882.21, 159,919.86 and 70,562.08 is: 97,377.14
Step by Step Solution
- Step 1: Write the proportion equation
115,882.21 : 159,919.86 = 70,562.08 : x - Step 2: Convert to fraction form
115,882.21/159,919.86 = 70,562.08/x - Step 3: Cross multiply
115,882.21x = 159,919.86 × 70,562.08 - Step 4: Simplify right side
115,882.21x = 11,284,277,954.91 - Step 5: Solve for x
x = 11,284,277,954.91/115,882.21 - Step 6: Final answer
x = 97,377.14
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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.