Finding the Fourth Proportional to 185,558.84, 255,913.26 and 129,105.08
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Solution
The fourth proportional to 185,558.84, 255,913.26 and 129,105.08 is: 178,055.12
Step by Step Solution
- Step 1: Write the proportion equation
185,558.84 : 255,913.26 = 129,105.08 : x - Step 2: Convert to fraction form
185,558.84/255,913.26 = 129,105.08/x - Step 3: Cross multiply
185,558.84x = 255,913.26 × 129,105.08 - Step 4: Simplify right side
185,558.84x = 33,039,701,905.36 - Step 5: Solve for x
x = 33,039,701,905.36/185,558.84 - Step 6: Final answer
x = 178,055.12
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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.