Finding the Fourth Proportional to 151,422.98, 208,963.72 and 87,797.68
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Solution
The fourth proportional to 151,422.98, 208,963.72 and 87,797.68 is: 121,160.80
Step by Step Solution
- Step 1: Write the proportion equation
151,422.98 : 208,963.72 = 87,797.68 : x - Step 2: Convert to fraction form
151,422.98/208,963.72 = 87,797.68/x - Step 3: Cross multiply
151,422.98x = 208,963.72 × 87,797.68 - Step 4: Simplify right side
151,422.98x = 18,346,529,820.17 - Step 5: Solve for x
x = 18,346,529,820.17/151,422.98 - Step 6: Final answer
x = 121,160.80
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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.