Finding the Fourth Proportional to 157,548.71, 217,342.19 and 106,579.28
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Solution
The fourth proportional to 157,548.71, 217,342.19 and 106,579.28 is: 147,028.65
Step by Step Solution
- Step 1: Write the proportion equation
157,548.71 : 217,342.19 = 106,579.28 : x - Step 2: Convert to fraction form
157,548.71/217,342.19 = 106,579.28/x - Step 3: Cross multiply
157,548.71x = 217,342.19 × 106,579.28 - Step 4: Simplify right side
157,548.71x = 23,164,173,590.93 - Step 5: Solve for x
x = 23,164,173,590.93/157,548.71 - Step 6: Final answer
x = 147,028.65
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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.