Finding the Fourth Proportional to 157,360.09, 217,154.19 and 85,740.70
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Solution
The fourth proportional to 157,360.09, 217,154.19 and 85,740.70 is: 118,320.68
Step by Step Solution
- Step 1: Write the proportion equation
157,360.09 : 217,154.19 = 85,740.70 : x - Step 2: Convert to fraction form
157,360.09/217,154.19 = 85,740.70/x - Step 3: Cross multiply
157,360.09x = 217,154.19 × 85,740.70 - Step 4: Simplify right side
157,360.09x = 18,618,952,258.53 - Step 5: Solve for x
x = 18,618,952,258.53/157,360.09 - Step 6: Final answer
x = 118,320.68
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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.