Finding the Fourth Proportional to 190,368.78, 262,639.41 and 113,890.08
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Solution
The fourth proportional to 190,368.78, 262,639.41 and 113,890.08 is: 157,126.73
Step by Step Solution
- Step 1: Write the proportion equation
190,368.78 : 262,639.41 = 113,890.08 : x - Step 2: Convert to fraction form
190,368.78/262,639.41 = 113,890.08/x - Step 3: Cross multiply
190,368.78x = 262,639.41 × 113,890.08 - Step 4: Simplify right side
190,368.78x = 29,912,023,416.05 - Step 5: Solve for x
x = 29,912,023,416.05/190,368.78 - Step 6: Final answer
x = 157,126.73
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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.