Finding the Fourth Proportional to 117,462.80, 162,126.47 and 69,743.67
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Solution
The fourth proportional to 117,462.80, 162,126.47 and 69,743.67 is: 96,262.78
Step by Step Solution
- Step 1: Write the proportion equation
117,462.80 : 162,126.47 = 69,743.67 : x - Step 2: Convert to fraction form
117,462.80/162,126.47 = 69,743.67/x - Step 3: Cross multiply
117,462.80x = 162,126.47 × 69,743.67 - Step 4: Simplify right side
117,462.80x = 11,307,294,673.23 - Step 5: Solve for x
x = 11,307,294,673.23/117,462.80 - Step 6: Final answer
x = 96,262.78
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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.