Finding the Fourth Proportional to 135,422.08, 186,864.96 and 75,806.08
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Solution
The fourth proportional to 135,422.08, 186,864.96 and 75,806.08 is: 104,602.59
Step by Step Solution
- Step 1: Write the proportion equation
135,422.08 : 186,864.96 = 75,806.08 : x - Step 2: Convert to fraction form
135,422.08/186,864.96 = 75,806.08/x - Step 3: Cross multiply
135,422.08x = 186,864.96 × 75,806.08 - Step 4: Simplify right side
135,422.08x = 14,165,500,106.96 - Step 5: Solve for x
x = 14,165,500,106.96/135,422.08 - Step 6: Final answer
x = 104,602.59
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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.