Finding the Fourth Proportional to 103,809.93, 155,811.77 and 53,246.92
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Solution
The fourth proportional to 103,809.93, 155,811.77 and 53,246.92 is: 79,920.07
Step by Step Solution
- Step 1: Write the proportion equation
103,809.93 : 155,811.77 = 53,246.92 : x - Step 2: Convert to fraction form
103,809.93/155,811.77 = 53,246.92/x - Step 3: Cross multiply
103,809.93x = 155,811.77 × 53,246.92 - Step 4: Simplify right side
103,809.93x = 8,296,496,852.25 - Step 5: Solve for x
x = 8,296,496,852.25/103,809.93 - Step 6: Final answer
x = 79,920.07
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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.