Finding the Fourth Proportional to 106,743.24, 147,304.26 and 61,421.63
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Solution
The fourth proportional to 106,743.24, 147,304.26 and 61,421.63 is: 84,761.03
Step by Step Solution
- Step 1: Write the proportion equation
106,743.24 : 147,304.26 = 61,421.63 : x - Step 2: Convert to fraction form
106,743.24/147,304.26 = 61,421.63/x - Step 3: Cross multiply
106,743.24x = 147,304.26 × 61,421.63 - Step 4: Simplify right side
106,743.24x = 9,047,667,018.62 - Step 5: Solve for x
x = 9,047,667,018.62/106,743.24 - Step 6: Final answer
x = 84,761.03
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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.