Finding the Fourth Proportional to 156,542.13, 216,028.56 and 84,922.15
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Solution
The fourth proportional to 156,542.13, 216,028.56 and 84,922.15 is: 117,192.80
Step by Step Solution
- Step 1: Write the proportion equation
156,542.13 : 216,028.56 = 84,922.15 : x - Step 2: Convert to fraction form
156,542.13/216,028.56 = 84,922.15/x - Step 3: Cross multiply
156,542.13x = 216,028.56 × 84,922.15 - Step 4: Simplify right side
156,542.13x = 18,345,609,776.60 - Step 5: Solve for x
x = 18,345,609,776.60/156,542.13 - Step 6: Final answer
x = 117,192.80
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1.5x scale
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.