Finding the Fourth Proportional to 160,335.53, 221,259.55 and 87,738.09
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Solution
The fourth proportional to 160,335.53, 221,259.55 and 87,738.09 is: 121,076.66
Step by Step Solution
- Step 1: Write the proportion equation
160,335.53 : 221,259.55 = 87,738.09 : x - Step 2: Convert to fraction form
160,335.53/221,259.55 = 87,738.09/x - Step 3: Cross multiply
160,335.53x = 221,259.55 × 87,738.09 - Step 4: Simplify right side
160,335.53x = 19,412,889,426.70 - Step 5: Solve for x
x = 19,412,889,426.70/160,335.53 - Step 6: Final answer
x = 121,076.66
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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.