Finding the Fourth Proportional to 156,480.68, 215,943.44 and 84,860.68
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Solution
The fourth proportional to 156,480.68, 215,943.44 and 84,860.68 is: 117,107.79
Step by Step Solution
- Step 1: Write the proportion equation
156,480.68 : 215,943.44 = 84,860.68 : x - Step 2: Convert to fraction form
156,480.68/215,943.44 = 84,860.68/x - Step 3: Cross multiply
156,480.68x = 215,943.44 × 84,860.68 - Step 4: Simplify right side
156,480.68x = 18,325,107,159.94 - Step 5: Solve for x
x = 18,325,107,159.94/156,480.68 - Step 6: Final answer
x = 117,107.79
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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.