Finding the Fourth Proportional to 159,193.64, 219,692.58 and 87,576.68
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Solution
The fourth proportional to 159,193.64, 219,692.58 and 87,576.68 is: 120,858.77
Step by Step Solution
- Step 1: Write the proportion equation
159,193.64 : 219,692.58 = 87,576.68 : x - Step 2: Convert to fraction form
159,193.64/219,692.58 = 87,576.68/x - Step 3: Cross multiply
159,193.64x = 219,692.58 × 87,576.68 - Step 4: Simplify right side
159,193.64x = 19,239,946,777.03 - Step 5: Solve for x
x = 19,239,946,777.03/159,193.64 - Step 6: Final answer
x = 120,858.77
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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.