Finding the Fourth Proportional to 101,134.44, 139,689.69 and 75,754.23
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Solution
The fourth proportional to 101,134.44, 139,689.69 and 75,754.23 is: 104,633.84
Step by Step Solution
- Step 1: Write the proportion equation
101,134.44 : 139,689.69 = 75,754.23 : x - Step 2: Convert to fraction form
101,134.44/139,689.69 = 75,754.23/x - Step 3: Cross multiply
101,134.44x = 139,689.69 × 75,754.23 - Step 4: Simplify right side
101,134.44x = 10,582,084,904.89 - Step 5: Solve for x
x = 10,582,084,904.89/101,134.44 - Step 6: Final answer
x = 104,633.84
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1.5x scale
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.