Finding the Fourth Proportional to 140,201.79, 193,489.51 and 79,774.98
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Solution
The fourth proportional to 140,201.79, 193,489.51 and 79,774.98 is: 110,095.75
Step by Step Solution
- Step 1: Write the proportion equation
140,201.79 : 193,489.51 = 79,774.98 : x - Step 2: Convert to fraction form
140,201.79/193,489.51 = 79,774.98/x - Step 3: Cross multiply
140,201.79x = 193,489.51 × 79,774.98 - Step 4: Simplify right side
140,201.79x = 15,435,621,015.01 - Step 5: Solve for x
x = 15,435,621,015.01/140,201.79 - Step 6: Final answer
x = 110,095.75
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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.