Finding the Fourth Proportional to 107,207.80, 160,811.70 and 65,735.80
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Solution
The fourth proportional to 107,207.80, 160,811.70 and 65,735.80 is: 98,603.70
Step by Step Solution
- Step 1: Write the proportion equation
107,207.80 : 160,811.70 = 65,735.80 : x - Step 2: Convert to fraction form
107,207.80/160,811.70 = 65,735.80/x - Step 3: Cross multiply
107,207.80x = 160,811.70 × 65,735.80 - Step 4: Simplify right side
107,207.80x = 10,571,085,748.86 - Step 5: Solve for x
x = 10,571,085,748.86/107,207.80 - Step 6: Final answer
x = 98,603.70
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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.