Finding the Fourth Proportional to 118,775.14, 163,909.73 and 65,062.09
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Solution
The fourth proportional to 118,775.14, 163,909.73 and 65,062.09 is: 89,785.70
Step by Step Solution
- Step 1: Write the proportion equation
118,775.14 : 163,909.73 = 65,062.09 : x - Step 2: Convert to fraction form
118,775.14/163,909.73 = 65,062.09/x - Step 3: Cross multiply
118,775.14x = 163,909.73 × 65,062.09 - Step 4: Simplify right side
118,775.14x = 10,664,309,605.14 - Step 5: Solve for x
x = 10,664,309,605.14/118,775.14 - Step 6: Final answer
x = 89,785.70
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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.