Finding the Fourth Proportional to 215,829.05, 297,765.99 and 125,135.07
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Solution
The fourth proportional to 215,829.05, 297,765.99 and 125,135.07 is: 172,641.11
Step by Step Solution
- Step 1: Write the proportion equation
215,829.05 : 297,765.99 = 125,135.07 : x - Step 2: Convert to fraction form
215,829.05/297,765.99 = 125,135.07/x - Step 3: Cross multiply
215,829.05x = 297,765.99 × 125,135.07 - Step 4: Simplify right side
215,829.05x = 37,260,965,887.76 - Step 5: Solve for x
x = 37,260,965,887.76/215,829.05 - Step 6: Final answer
x = 172,641.11
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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.