Finding the Fourth Proportional to 120,729.08, 181,128.18 and 58,434.68
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Solution
The fourth proportional to 120,729.08, 181,128.18 and 58,434.68 is: 87,668.75
Step by Step Solution
- Step 1: Write the proportion equation
120,729.08 : 181,128.18 = 58,434.68 : x - Step 2: Convert to fraction form
120,729.08/181,128.18 = 58,434.68/x - Step 3: Cross multiply
120,729.08x = 181,128.18 × 58,434.68 - Step 4: Simplify right side
120,729.08x = 10,584,167,237.28 - Step 5: Solve for x
x = 10,584,167,237.28/120,729.08 - Step 6: Final answer
x = 87,668.75
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.