Finding the Fourth Proportional to 159,655.05, 220,208.18 and 108,576.99
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Solution
The fourth proportional to 159,655.05, 220,208.18 and 108,576.99 is: 149,757.50
Step by Step Solution
- Step 1: Write the proportion equation
159,655.05 : 220,208.18 = 108,576.99 : x - Step 2: Convert to fraction form
159,655.05/220,208.18 = 108,576.99/x - Step 3: Cross multiply
159,655.05x = 220,208.18 × 108,576.99 - Step 4: Simplify right side
159,655.05x = 23,909,540,814.89 - Step 5: Solve for x
x = 23,909,540,814.89/159,655.05 - Step 6: Final answer
x = 149,757.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.