Finding the Fourth Proportional to 159,219.80, 219,717.78 and 87,599.08
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Solution
The fourth proportional to 159,219.80, 219,717.78 and 87,599.08 is: 120,883.68
Step by Step Solution
- Step 1: Write the proportion equation
159,219.80 : 219,717.78 = 87,599.08 : x - Step 2: Convert to fraction form
159,219.80/219,717.78 = 87,599.08/x - Step 3: Cross multiply
159,219.80x = 219,717.78 × 87,599.08 - Step 4: Simplify right side
159,219.80x = 19,247,075,387.64 - Step 5: Solve for x
x = 19,247,075,387.64/159,219.80 - Step 6: Final answer
x = 120,883.68
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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.