Finding the Fourth Proportional to 115,775.40, 159,801.48 and 68,044.08
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Solution
The fourth proportional to 115,775.40, 159,801.48 and 68,044.08 is: 93,919.30
Step by Step Solution
- Step 1: Write the proportion equation
115,775.40 : 159,801.48 = 68,044.08 : x - Step 2: Convert to fraction form
115,775.40/159,801.48 = 68,044.08/x - Step 3: Cross multiply
115,775.40x = 159,801.48 × 68,044.08 - Step 4: Simplify right side
115,775.40x = 10,873,544,689.24 - Step 5: Solve for x
x = 10,873,544,689.24/115,775.40 - Step 6: Final answer
x = 93,919.30
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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.