Finding the Fourth Proportional to 156,522.12, 215,998.99 and 84,901.11
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Solution
The fourth proportional to 156,522.12, 215,998.99 and 84,901.11 is: 117,162.70
Step by Step Solution
- Step 1: Write the proportion equation
156,522.12 : 215,998.99 = 84,901.11 : x - Step 2: Convert to fraction form
156,522.12/215,998.99 = 84,901.11/x - Step 3: Cross multiply
156,522.12x = 215,998.99 × 84,901.11 - Step 4: Simplify right side
156,522.12x = 18,338,554,009.88 - Step 5: Solve for x
x = 18,338,554,009.88/156,522.12 - Step 6: Final answer
x = 117,162.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.