Finding the Fourth Proportional to 134,660.59, 185,833.92 and 74,230.81
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Solution
The fourth proportional to 134,660.59, 185,833.92 and 74,230.81 is: 102,439.79
Step by Step Solution
- Step 1: Write the proportion equation
134,660.59 : 185,833.92 = 74,230.81 : x - Step 2: Convert to fraction form
134,660.59/185,833.92 = 74,230.81/x - Step 3: Cross multiply
134,660.59x = 185,833.92 × 74,230.81 - Step 4: Simplify right side
134,660.59x = 13,794,602,407.08 - Step 5: Solve for x
x = 13,794,602,407.08/134,660.59 - Step 6: Final answer
x = 102,439.79
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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.