Finding the Fourth Proportional to 147,140.15, 220,515.82 and 53,555.99
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Solution
The fourth proportional to 147,140.15, 220,515.82 and 53,555.99 is: 80,263.22
Step by Step Solution
- Step 1: Write the proportion equation
147,140.15 : 220,515.82 = 53,555.99 : x - Step 2: Convert to fraction form
147,140.15/220,515.82 = 53,555.99/x - Step 3: Cross multiply
147,140.15x = 220,515.82 × 53,555.99 - Step 4: Simplify right side
147,140.15x = 11,809,941,814.29 - Step 5: Solve for x
x = 11,809,941,814.29/147,140.15 - Step 6: Final answer
x = 80,263.22
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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.