Finding the Fourth Proportional to 185,653.13, 256,205.90 and 100,769.99
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Solution
The fourth proportional to 185,653.13, 256,205.90 and 100,769.99 is: 139,065.07
Step by Step Solution
- Step 1: Write the proportion equation
185,653.13 : 256,205.90 = 100,769.99 : x - Step 2: Convert to fraction form
185,653.13/256,205.90 = 100,769.99/x - Step 3: Cross multiply
185,653.13x = 256,205.90 × 100,769.99 - Step 4: Simplify right side
185,653.13x = 25,817,864,951.84 - Step 5: Solve for x
x = 25,817,864,951.84/185,653.13 - Step 6: Final answer
x = 139,065.07
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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.