Finding the Fourth Proportional to 118,617.84, 177,638.81 and 65,228.31
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Solution
The fourth proportional to 118,617.84, 177,638.81 and 65,228.31 is: 97,684.12
Step by Step Solution
- Step 1: Write the proportion equation
118,617.84 : 177,638.81 = 65,228.31 : x - Step 2: Convert to fraction form
118,617.84/177,638.81 = 65,228.31/x - Step 3: Cross multiply
118,617.84x = 177,638.81 × 65,228.31 - Step 4: Simplify right side
118,617.84x = 11,587,079,040.57 - Step 5: Solve for x
x = 11,587,079,040.57/118,617.84 - Step 6: Final answer
x = 97,684.12
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.