Finding the Fourth Proportional to 134,447.80, 201,671.70 and 128,542.90
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Solution
The fourth proportional to 134,447.80, 201,671.70 and 128,542.90 is: 192,814.35
Step by Step Solution
- Step 1: Write the proportion equation
134,447.80 : 201,671.70 = 128,542.90 : x - Step 2: Convert to fraction form
134,447.80/201,671.70 = 128,542.90/x - Step 3: Cross multiply
134,447.80x = 201,671.70 × 128,542.90 - Step 4: Simplify right side
134,447.80x = 25,923,465,165.93 - Step 5: Solve for x
x = 25,923,465,165.93/134,447.80 - Step 6: Final answer
x = 192,814.35
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1.5x scale
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.