Finding the Fourth Proportional to 134,148.70, 201,352.65 and 81,660.70
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Solution
The fourth proportional to 134,148.70, 201,352.65 and 81,660.70 is: 122,569.94
Step by Step Solution
- Step 1: Write the proportion equation
134,148.70 : 201,352.65 = 81,660.70 : x - Step 2: Convert to fraction form
134,148.70/201,352.65 = 81,660.70/x - Step 3: Cross multiply
134,148.70x = 201,352.65 × 81,660.70 - Step 4: Simplify right side
134,148.70x = 16,442,598,345.86 - Step 5: Solve for x
x = 16,442,598,345.86/134,148.70 - Step 6: Final answer
x = 122,569.94
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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.