Finding the Fourth Proportional to 157,497.84, 217,346.49 and 85,877.69
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Solution
The fourth proportional to 157,497.84, 217,346.49 and 85,877.69 is: 118,510.92
Step by Step Solution
- Step 1: Write the proportion equation
157,497.84 : 217,346.49 = 85,877.69 : x - Step 2: Convert to fraction form
157,497.84/217,346.49 = 85,877.69/x - Step 3: Cross multiply
157,497.84x = 217,346.49 × 85,877.69 - Step 4: Simplify right side
157,497.84x = 18,665,213,404.08 - Step 5: Solve for x
x = 18,665,213,404.08/157,497.84 - Step 6: Final answer
x = 118,510.92
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1.5x scale
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.