Finding the Fourth Proportional to 159,552.09, 220,177.55 and 87,932.09
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Solution
The fourth proportional to 159,552.09, 220,177.55 and 87,932.09 is: 121,343.89
Step by Step Solution
- Step 1: Write the proportion equation
159,552.09 : 220,177.55 = 87,932.09 : x - Step 2: Convert to fraction form
159,552.09/220,177.55 = 87,932.09/x - Step 3: Cross multiply
159,552.09x = 220,177.55 × 87,932.09 - Step 4: Simplify right side
159,552.09x = 19,360,670,602.03 - Step 5: Solve for x
x = 19,360,670,602.03/159,552.09 - Step 6: Final answer
x = 121,343.89
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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.