Finding the Fourth Proportional to 156,943.70, 235,069.95 and 136,207.70
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Solution
The fourth proportional to 156,943.70, 235,069.95 and 136,207.70 is: 204,011.61
Step by Step Solution
- Step 1: Write the proportion equation
156,943.70 : 235,069.95 = 136,207.70 : x - Step 2: Convert to fraction form
156,943.70/235,069.95 = 136,207.70/x - Step 3: Cross multiply
156,943.70x = 235,069.95 × 136,207.70 - Step 4: Simplify right side
156,943.70x = 32,018,337,228.62 - Step 5: Solve for x
x = 32,018,337,228.62/156,943.70 - Step 6: Final answer
x = 204,011.61
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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.