Finding the Fourth Proportional to 118,534.79, 177,539.04 and 85,154.69
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Solution
The fourth proportional to 118,534.79, 177,539.04 and 85,154.69 is: 127,542.99
Step by Step Solution
- Step 1: Write the proportion equation
118,534.79 : 177,539.04 = 85,154.69 : x - Step 2: Convert to fraction form
118,534.79/177,539.04 = 85,154.69/x - Step 3: Cross multiply
118,534.79x = 177,539.04 × 85,154.69 - Step 4: Simplify right side
118,534.79x = 15,118,282,357.95 - Step 5: Solve for x
x = 15,118,282,357.95/118,534.79 - Step 6: Final answer
x = 127,542.99
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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.