Finding the Fourth Proportional to 135,357.06, 186,790.05 and 74,927.69
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Solution
The fourth proportional to 135,357.06, 186,790.05 and 74,927.69 is: 103,398.72
Step by Step Solution
- Step 1: Write the proportion equation
135,357.06 : 186,790.05 = 74,927.69 : x - Step 2: Convert to fraction form
135,357.06/186,790.05 = 74,927.69/x - Step 3: Cross multiply
135,357.06x = 186,790.05 × 74,927.69 - Step 4: Simplify right side
135,357.06x = 13,995,746,961.48 - Step 5: Solve for x
x = 13,995,746,961.48/135,357.06 - Step 6: Final answer
x = 103,398.72
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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.