Finding the Fourth Proportional to 135,150.22, 186,511.19 and 74,724.76
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Solution
The fourth proportional to 135,150.22, 186,511.19 and 74,724.76 is: 103,122.32
Step by Step Solution
- Step 1: Write the proportion equation
135,150.22 : 186,511.19 = 74,724.76 : x - Step 2: Convert to fraction form
135,150.22/186,511.19 = 74,724.76/x - Step 3: Cross multiply
135,150.22x = 186,511.19 × 74,724.76 - Step 4: Simplify right side
135,150.22x = 13,937,003,910.06 - Step 5: Solve for x
x = 13,937,003,910.06/135,150.22 - Step 6: Final answer
x = 103,122.32
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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.