Finding the Fourth Proportional to 134,422.11, 185,425.64 and 84,033.63
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Solution
The fourth proportional to 134,422.11, 185,425.64 and 84,033.63 is: 115,918.35
Step by Step Solution
- Step 1: Write the proportion equation
134,422.11 : 185,425.64 = 84,033.63 : x - Step 2: Convert to fraction form
134,422.11/185,425.64 = 84,033.63/x - Step 3: Cross multiply
134,422.11x = 185,425.64 × 84,033.63 - Step 4: Simplify right side
134,422.11x = 15,581,989,519.23 - Step 5: Solve for x
x = 15,581,989,519.23/134,422.11 - Step 6: Final answer
x = 115,918.35
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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.