Finding the Fourth Proportional to 104,937.36, 144,813.68 and 57,190.76
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Solution
The fourth proportional to 104,937.36, 144,813.68 and 57,190.76 is: 78,923.32
Step by Step Solution
- Step 1: Write the proportion equation
104,937.36 : 144,813.68 = 57,190.76 : x - Step 2: Convert to fraction form
104,937.36/144,813.68 = 57,190.76/x - Step 3: Cross multiply
104,937.36x = 144,813.68 × 57,190.76 - Step 4: Simplify right side
104,937.36x = 8,282,004,417.60 - Step 5: Solve for x
x = 8,282,004,417.60/104,937.36 - Step 6: Final answer
x = 78,923.32
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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.