Finding the Fourth Proportional to 159,918.19, 239,878.51 and 54,738.07
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Solution
The fourth proportional to 159,918.19, 239,878.51 and 54,738.07 is: 82,107.52
Step by Step Solution
- Step 1: Write the proportion equation
159,918.19 : 239,878.51 = 54,738.07 : x - Step 2: Convert to fraction form
159,918.19/239,878.51 = 54,738.07/x - Step 3: Cross multiply
159,918.19x = 239,878.51 × 54,738.07 - Step 4: Simplify right side
159,918.19x = 13,130,485,935.33 - Step 5: Solve for x
x = 13,130,485,935.33/159,918.19 - Step 6: Final answer
x = 82,107.52
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.