Finding the Fourth Proportional to 156,733.10, 235,139.43 and 72,553.99
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Solution
The fourth proportional to 156,733.10, 235,139.43 and 72,553.99 is: 108,849.40
Step by Step Solution
- Step 1: Write the proportion equation
156,733.10 : 235,139.43 = 72,553.99 : x - Step 2: Convert to fraction form
156,733.10/235,139.43 = 72,553.99/x - Step 3: Cross multiply
156,733.10x = 235,139.43 × 72,553.99 - Step 4: Simplify right side
156,733.10x = 17,060,303,852.83 - Step 5: Solve for x
x = 17,060,303,852.83/156,733.10 - Step 6: Final answer
x = 108,849.40
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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.