Finding the Fourth Proportional to 159,485.05, 220,121.25 and 91,547.95
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Solution
The fourth proportional to 159,485.05, 220,121.25 and 91,547.95 is: 126,354.46
Step by Step Solution
- Step 1: Write the proportion equation
159,485.05 : 220,121.25 = 91,547.95 : x - Step 2: Convert to fraction form
159,485.05/220,121.25 = 91,547.95/x - Step 3: Cross multiply
159,485.05x = 220,121.25 × 91,547.95 - Step 4: Simplify right side
159,485.05x = 20,151,648,088.97 - Step 5: Solve for x
x = 20,151,648,088.97/159,485.05 - Step 6: Final answer
x = 126,354.46
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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.