Finding the Fourth Proportional to 113,867.71, 157,138.68 and 62,880.33
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Solution
The fourth proportional to 113,867.71, 157,138.68 and 62,880.33 is: 86,775.55
Step by Step Solution
- Step 1: Write the proportion equation
113,867.71 : 157,138.68 = 62,880.33 : x - Step 2: Convert to fraction form
113,867.71/157,138.68 = 62,880.33/x - Step 3: Cross multiply
113,867.71x = 157,138.68 × 62,880.33 - Step 4: Simplify right side
113,867.71x = 9,880,932,879.24 - Step 5: Solve for x
x = 9,880,932,879.24/113,867.71 - Step 6: Final answer
x = 86,775.55
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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.