Finding the Fourth Proportional to 135,211.44, 186,590.61 and 74,786.52
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Solution
The fourth proportional to 135,211.44, 186,590.61 and 74,786.52 is: 103,204.75
Step by Step Solution
- Step 1: Write the proportion equation
135,211.44 : 186,590.61 = 74,786.52 : x - Step 2: Convert to fraction form
135,211.44/186,590.61 = 74,786.52/x - Step 3: Cross multiply
135,211.44x = 186,590.61 × 74,786.52 - Step 4: Simplify right side
135,211.44x = 13,954,462,386.58 - Step 5: Solve for x
x = 13,954,462,386.58/135,211.44 - Step 6: Final answer
x = 103,204.75
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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.