Finding the Fourth Proportional to 156,619.92, 216,135.66 and 84,999.99
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Solution
The fourth proportional to 156,619.92, 216,135.66 and 84,999.99 is: 117,300.08
Step by Step Solution
- Step 1: Write the proportion equation
156,619.92 : 216,135.66 = 84,999.99 : x - Step 2: Convert to fraction form
156,619.92/216,135.66 = 84,999.99/x - Step 3: Cross multiply
156,619.92x = 216,135.66 × 84,999.99 - Step 4: Simplify right side
156,619.92x = 18,371,528,513.64 - Step 5: Solve for x
x = 18,371,528,513.64/156,619.92 - Step 6: Final answer
x = 117,300.08
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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.