Finding the Fourth Proportional to 163,743.74, 245,615.58 and 45,415.09
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Solution
The fourth proportional to 163,743.74, 245,615.58 and 45,415.09 is: 68,122.63
Step by Step Solution
- Step 1: Write the proportion equation
163,743.74 : 245,615.58 = 45,415.09 : x - Step 2: Convert to fraction form
163,743.74/245,615.58 = 45,415.09/x - Step 3: Cross multiply
163,743.74x = 245,615.58 × 45,415.09 - Step 4: Simplify right side
163,743.74x = 11,154,653,978.12 - Step 5: Solve for x
x = 11,154,653,978.12/163,743.74 - Step 6: Final answer
x = 68,122.63
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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.