Finding the Fourth Proportional to 113,905.99, 157,187.12 and 62,917.91
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Solution
The fourth proportional to 113,905.99, 157,187.12 and 62,917.91 is: 86,824.97
Step by Step Solution
- Step 1: Write the proportion equation
113,905.99 : 157,187.12 = 62,917.91 : x - Step 2: Convert to fraction form
113,905.99/157,187.12 = 62,917.91/x - Step 3: Cross multiply
113,905.99x = 157,187.12 × 62,917.91 - Step 4: Simplify right side
113,905.99x = 9,889,884,558.25 - Step 5: Solve for x
x = 9,889,884,558.25/113,905.99 - Step 6: Final answer
x = 86,824.97
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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.