Finding the Fourth Proportional to 136,612.74, 205,047.09 and 84,124.74
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Solution
The fourth proportional to 136,612.74, 205,047.09 and 84,124.74 is: 126,265.92
Step by Step Solution
- Step 1: Write the proportion equation
136,612.74 : 205,047.09 = 84,124.74 : x - Step 2: Convert to fraction form
136,612.74/205,047.09 = 84,124.74/x - Step 3: Cross multiply
136,612.74x = 205,047.09 × 84,124.74 - Step 4: Simplify right side
136,612.74x = 17,249,533,134.01 - Step 5: Solve for x
x = 17,249,533,134.01/136,612.74 - Step 6: Final answer
x = 126,265.92
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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.