Finding the Fourth Proportional to 105,121.99, 157,703.75 and 38,562.69
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Solution
The fourth proportional to 105,121.99, 157,703.75 and 38,562.69 is: 57,851.65
Step by Step Solution
- Step 1: Write the proportion equation
105,121.99 : 157,703.75 = 38,562.69 : x - Step 2: Convert to fraction form
105,121.99/157,703.75 = 38,562.69/x - Step 3: Cross multiply
105,121.99x = 157,703.75 × 38,562.69 - Step 4: Simplify right side
105,121.99x = 6,081,480,919.49 - Step 5: Solve for x
x = 6,081,480,919.49/105,121.99 - Step 6: Final answer
x = 57,851.65
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.