Finding the Fourth Proportional to 156,929.70, 235,048.95 and 136,193.70
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Solution
The fourth proportional to 156,929.70, 235,048.95 and 136,193.70 is: 203,990.62
Step by Step Solution
- Step 1: Write the proportion equation
156,929.70 : 235,048.95 = 136,193.70 : x - Step 2: Convert to fraction form
156,929.70/235,048.95 = 136,193.70/x - Step 3: Cross multiply
156,929.70x = 235,048.95 × 136,193.70 - Step 4: Simplify right side
156,929.70x = 32,012,186,181.62 - Step 5: Solve for x
x = 32,012,186,181.62/156,929.70 - Step 6: Final answer
x = 203,990.62
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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.