Finding the Fourth Proportional to 157,207.99, 216,950.92 and 85,591.94
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Solution
The fourth proportional to 157,207.99, 216,950.92 and 85,591.94 is: 118,118.99
Step by Step Solution
- Step 1: Write the proportion equation
157,207.99 : 216,950.92 = 85,591.94 : x - Step 2: Convert to fraction form
157,207.99/216,950.92 = 85,591.94/x - Step 3: Cross multiply
157,207.99x = 216,950.92 × 85,591.94 - Step 4: Simplify right side
157,207.99x = 18,569,248,614.87 - Step 5: Solve for x
x = 18,569,248,614.87/157,207.99 - Step 6: Final answer
x = 118,118.99
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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.