Finding the Fourth Proportional to 156,990.09, 216,652.26 and 89,006.28
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Solution
The fourth proportional to 156,990.09, 216,652.26 and 89,006.28 is: 122,832.03
Step by Step Solution
- Step 1: Write the proportion equation
156,990.09 : 216,652.26 = 89,006.28 : x - Step 2: Convert to fraction form
156,990.09/216,652.26 = 89,006.28/x - Step 3: Cross multiply
156,990.09x = 216,652.26 × 89,006.28 - Step 4: Simplify right side
156,990.09x = 19,283,411,716.19 - Step 5: Solve for x
x = 19,283,411,716.19/156,990.09 - Step 6: Final answer
x = 122,832.03
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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.