Finding the Fourth Proportional to 156,619.42, 216,134.97 and 84,999.49
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Solution
The fourth proportional to 156,619.42, 216,134.97 and 84,999.49 is: 117,299.39
Step by Step Solution
- Step 1: Write the proportion equation
156,619.42 : 216,134.97 = 84,999.49 : x - Step 2: Convert to fraction form
156,619.42/216,134.97 = 84,999.49/x - Step 3: Cross multiply
156,619.42x = 216,134.97 × 84,999.49 - Step 4: Simplify right side
156,619.42x = 18,371,361,362.08 - Step 5: Solve for x
x = 18,371,361,362.08/156,619.42 - Step 6: Final answer
x = 117,299.39
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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.