Finding the Fourth Proportional to 167,286.83, 230,856.36 and 90,805.99
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Solution
The fourth proportional to 167,286.83, 230,856.36 and 90,805.99 is: 125,312.56
Step by Step Solution
- Step 1: Write the proportion equation
167,286.83 : 230,856.36 = 90,805.99 : x - Step 2: Convert to fraction form
167,286.83/230,856.36 = 90,805.99/x - Step 3: Cross multiply
167,286.83x = 230,856.36 × 90,805.99 - Step 4: Simplify right side
167,286.83x = 20,963,140,317.60 - Step 5: Solve for x
x = 20,963,140,317.60/167,286.83 - Step 6: Final answer
x = 125,312.56
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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.