Finding the Fourth Proportional to 156,917.70, 235,030.95 and 136,181.70
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Solution
The fourth proportional to 156,917.70, 235,030.95 and 136,181.70 is: 203,972.62
Step by Step Solution
- Step 1: Write the proportion equation
156,917.70 : 235,030.95 = 136,181.70 : x - Step 2: Convert to fraction form
156,917.70/235,030.95 = 136,181.70/x - Step 3: Cross multiply
156,917.70x = 235,030.95 × 136,181.70 - Step 4: Simplify right side
156,917.70x = 32,006,914,323.62 - Step 5: Solve for x
x = 32,006,914,323.62/156,917.70 - Step 6: Final answer
x = 203,972.62
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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.