Finding the Fourth Proportional to 112,237.53, 154,887.03 and 61,936.53
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Solution
The fourth proportional to 112,237.53, 154,887.03 and 61,936.53 is: 85,471.99
Step by Step Solution
- Step 1: Write the proportion equation
112,237.53 : 154,887.03 = 61,936.53 : x - Step 2: Convert to fraction form
112,237.53/154,887.03 = 61,936.53/x - Step 3: Cross multiply
112,237.53x = 154,887.03 × 61,936.53 - Step 4: Simplify right side
112,237.53x = 9,593,165,180.21 - Step 5: Solve for x
x = 9,593,165,180.21/112,237.53 - Step 6: Final answer
x = 85,471.99
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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.