Finding the Fourth Proportional to 114,328.70, 171,201.45 and 91,000.70
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Solution
The fourth proportional to 114,328.70, 171,201.45 and 91,000.70 is: 136,268.95
Step by Step Solution
- Step 1: Write the proportion equation
114,328.70 : 171,201.45 = 91,000.70 : x - Step 2: Convert to fraction form
114,328.70/171,201.45 = 91,000.70/x - Step 3: Cross multiply
114,328.70x = 171,201.45 × 91,000.70 - Step 4: Simplify right side
114,328.70x = 15,579,451,791.02 - Step 5: Solve for x
x = 15,579,451,791.02/114,328.70 - Step 6: Final answer
x = 136,268.95
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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.