Finding the Fourth Proportional to 113,928.09, 157,217.99 and 62,945.70
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Solution
The fourth proportional to 113,928.09, 157,217.99 and 62,945.70 is: 86,863.53
Step by Step Solution
- Step 1: Write the proportion equation
113,928.09 : 157,217.99 = 62,945.70 : x - Step 2: Convert to fraction form
113,928.09/157,217.99 = 62,945.70/x - Step 3: Cross multiply
113,928.09x = 157,217.99 × 62,945.70 - Step 4: Simplify right side
113,928.09x = 9,896,196,433.14 - Step 5: Solve for x
x = 9,896,196,433.14/113,928.09 - Step 6: Final answer
x = 86,863.53
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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.