Finding the Fourth Proportional to 116,642.59, 160,926.55 and 65,644.99
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Solution
The fourth proportional to 116,642.59, 160,926.55 and 65,644.99 is: 90,567.45
Step by Step Solution
- Step 1: Write the proportion equation
116,642.59 : 160,926.55 = 65,644.99 : x - Step 2: Convert to fraction form
116,642.59/160,926.55 = 65,644.99/x - Step 3: Cross multiply
116,642.59x = 160,926.55 × 65,644.99 - Step 4: Simplify right side
116,642.59x = 10,564,021,765.48 - Step 5: Solve for x
x = 10,564,021,765.48/116,642.59 - Step 6: Final answer
x = 90,567.45
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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.