Finding the Fourth Proportional to 159,051.40, 219,491.36 and 91,069.40
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Solution
The fourth proportional to 159,051.40, 219,491.36 and 91,069.40 is: 125,676.02
Step by Step Solution
- Step 1: Write the proportion equation
159,051.40 : 219,491.36 = 91,069.40 : x - Step 2: Convert to fraction form
159,051.40/219,491.36 = 91,069.40/x - Step 3: Cross multiply
159,051.40x = 219,491.36 × 91,069.40 - Step 4: Simplify right side
159,051.40x = 19,988,946,460.38 - Step 5: Solve for x
x = 19,988,946,460.38/159,051.40 - Step 6: Final answer
x = 125,676.02
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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.