Finding the Fourth Proportional to 118,218.64, 177,228.16 and 55,006.08
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Solution
The fourth proportional to 118,218.64, 177,228.16 and 55,006.08 is: 82,462.68
Step by Step Solution
- Step 1: Write the proportion equation
118,218.64 : 177,228.16 = 55,006.08 : x - Step 2: Convert to fraction form
118,218.64/177,228.16 = 55,006.08/x - Step 3: Cross multiply
118,218.64x = 177,228.16 × 55,006.08 - Step 4: Simplify right side
118,218.64x = 9,748,626,347.21 - Step 5: Solve for x
x = 9,748,626,347.21/118,218.64 - Step 6: Final answer
x = 82,462.68
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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.