Finding the Fourth Proportional to 114,337.97, 171,213.20 and 74,779.73
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Solution
The fourth proportional to 114,337.97, 171,213.20 and 74,779.73 is: 111,977.47
Step by Step Solution
- Step 1: Write the proportion equation
114,337.97 : 171,213.20 = 74,779.73 : x - Step 2: Convert to fraction form
114,337.97/171,213.20 = 74,779.73/x - Step 3: Cross multiply
114,337.97x = 171,213.20 × 74,779.73 - Step 4: Simplify right side
114,337.97x = 12,803,276,494.54 - Step 5: Solve for x
x = 12,803,276,494.54/114,337.97 - Step 6: Final answer
x = 111,977.47
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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.