Finding the Fourth Proportional to 138,506.06, 207,547.68 and 82,235.36
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Solution
The fourth proportional to 138,506.06, 207,547.68 and 82,235.36 is: 123,227.52
Step by Step Solution
- Step 1: Write the proportion equation
138,506.06 : 207,547.68 = 82,235.36 : x - Step 2: Convert to fraction form
138,506.06/207,547.68 = 82,235.36/x - Step 3: Cross multiply
138,506.06x = 207,547.68 × 82,235.36 - Step 4: Simplify right side
138,506.06x = 17,067,758,181.96 - Step 5: Solve for x
x = 17,067,758,181.96/138,506.06 - Step 6: Final answer
x = 123,227.52
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.