Finding the Fourth Proportional to 151,335.53, 208,824.74 and 86,801.42
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Solution
The fourth proportional to 151,335.53, 208,824.74 and 86,801.42 is: 119,775.47
Step by Step Solution
- Step 1: Write the proportion equation
151,335.53 : 208,824.74 = 86,801.42 : x - Step 2: Convert to fraction form
151,335.53/208,824.74 = 86,801.42/x - Step 3: Cross multiply
151,335.53x = 208,824.74 × 86,801.42 - Step 4: Simplify right side
151,335.53x = 18,126,283,963.13 - Step 5: Solve for x
x = 18,126,283,963.13/151,335.53 - Step 6: Final answer
x = 119,775.47
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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.