Finding the Fourth Proportional to 135,137.18, 186,489.28 and 73,883.59
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Solution
The fourth proportional to 135,137.18, 186,489.28 and 73,883.59 is: 101,959.34
Step by Step Solution
- Step 1: Write the proportion equation
135,137.18 : 186,489.28 = 73,883.59 : x - Step 2: Convert to fraction form
135,137.18/186,489.28 = 73,883.59/x - Step 3: Cross multiply
135,137.18x = 186,489.28 × 73,883.59 - Step 4: Simplify right side
135,137.18x = 13,778,497,502.92 - Step 5: Solve for x
x = 13,778,497,502.92/135,137.18 - Step 6: Final answer
x = 101,959.34
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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.