Finding the Fourth Proportional to 156,779.70, 234,823.95 and 136,043.70
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Solution
The fourth proportional to 156,779.70, 234,823.95 and 136,043.70 is: 203,765.66
Step by Step Solution
- Step 1: Write the proportion equation
156,779.70 : 234,823.95 = 136,043.70 : x - Step 2: Convert to fraction form
156,779.70/234,823.95 = 136,043.70/x - Step 3: Cross multiply
156,779.70x = 234,823.95 × 136,043.70 - Step 4: Simplify right side
156,779.70x = 31,946,319,006.62 - Step 5: Solve for x
x = 31,946,319,006.62/156,779.70 - Step 6: Final answer
x = 203,765.66
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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.