Finding the Fourth Proportional to 119,642.67, 165,110.36 and 65,931.14
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Solution
The fourth proportional to 119,642.67, 165,110.36 and 65,931.14 is: 90,986.89
Step by Step Solution
- Step 1: Write the proportion equation
119,642.67 : 165,110.36 = 65,931.14 : x - Step 2: Convert to fraction form
119,642.67/165,110.36 = 65,931.14/x - Step 3: Cross multiply
119,642.67x = 165,110.36 × 65,931.14 - Step 4: Simplify right side
119,642.67x = 10,885,914,343.73 - Step 5: Solve for x
x = 10,885,914,343.73/119,642.67 - Step 6: Final answer
x = 90,986.89
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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.