Finding the Fourth Proportional to 159,775.88, 220,570.62 and 99,365.99
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Solution
The fourth proportional to 159,775.88, 220,570.62 and 99,365.99 is: 137,174.75
Step by Step Solution
- Step 1: Write the proportion equation
159,775.88 : 220,570.62 = 99,365.99 : x - Step 2: Convert to fraction form
159,775.88/220,570.62 = 99,365.99/x - Step 3: Cross multiply
159,775.88x = 220,570.62 × 99,365.99 - Step 4: Simplify right side
159,775.88x = 21,917,216,421.53 - Step 5: Solve for x
x = 21,917,216,421.53/159,775.88 - Step 6: Final answer
x = 137,174.75
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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.