Finding the Fourth Proportional to 159,176.10, 219,679.13 and 91,202.09
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Solution
The fourth proportional to 159,176.10, 219,679.13 and 91,202.09 is: 125,868.11
Step by Step Solution
- Step 1: Write the proportion equation
159,176.10 : 219,679.13 = 91,202.09 : x - Step 2: Convert to fraction form
159,176.10/219,679.13 = 91,202.09/x - Step 3: Cross multiply
159,176.10x = 219,679.13 × 91,202.09 - Step 4: Simplify right side
159,176.10x = 20,035,195,200.50 - Step 5: Solve for x
x = 20,035,195,200.50/159,176.10 - Step 6: Final answer
x = 125,868.11
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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.