Finding the Fourth Proportional to 159,855.54, 220,607.99 and 91,894.51
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Solution
The fourth proportional to 159,855.54, 220,607.99 and 91,894.51 is: 126,818.65
Step by Step Solution
- Step 1: Write the proportion equation
159,855.54 : 220,607.99 = 91,894.51 : x - Step 2: Convert to fraction form
159,855.54/220,607.99 = 91,894.51/x - Step 3: Cross multiply
159,855.54x = 220,607.99 × 91,894.51 - Step 4: Simplify right side
159,855.54x = 20,272,663,143.13 - Step 5: Solve for x
x = 20,272,663,143.13/159,855.54 - Step 6: Final answer
x = 126,818.65
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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.