Finding the Fourth Proportional to 103,586.20, 155,503.77 and 70,204.99
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Solution
The fourth proportional to 103,586.20, 155,503.77 and 70,204.99 is: 105,391.84
Step by Step Solution
- Step 1: Write the proportion equation
103,586.20 : 155,503.77 = 70,204.99 : x - Step 2: Convert to fraction form
103,586.20/155,503.77 = 70,204.99/x - Step 3: Cross multiply
103,586.20x = 155,503.77 × 70,204.99 - Step 4: Simplify right side
103,586.20x = 10,917,140,617.81 - Step 5: Solve for x
x = 10,917,140,617.81/103,586.20 - Step 6: Final answer
x = 105,391.84
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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.