Finding the Fourth Proportional to 165,631.72, 248,448.87 and 90,710.99
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Solution
The fourth proportional to 165,631.72, 248,448.87 and 90,710.99 is: 136,067.20
Step by Step Solution
- Step 1: Write the proportion equation
165,631.72 : 248,448.87 = 90,710.99 : x - Step 2: Convert to fraction form
165,631.72/248,448.87 = 90,710.99/x - Step 3: Cross multiply
165,631.72x = 248,448.87 × 90,710.99 - Step 4: Simplify right side
165,631.72x = 22,537,044,219.13 - Step 5: Solve for x
x = 22,537,044,219.13/165,631.72 - Step 6: Final answer
x = 136,067.20
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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.