Finding the Fourth Proportional to 104,438.27, 144,128.03 and 61,409.99
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Solution
The fourth proportional to 104,438.27, 144,128.03 and 61,409.99 is: 84,747.68
Step by Step Solution
- Step 1: Write the proportion equation
104,438.27 : 144,128.03 = 61,409.99 : x - Step 2: Convert to fraction form
104,438.27/144,128.03 = 61,409.99/x - Step 3: Cross multiply
104,438.27x = 144,128.03 × 61,409.99 - Step 4: Simplify right side
104,438.27x = 8,850,900,934.29 - Step 5: Solve for x
x = 8,850,900,934.29/104,438.27 - Step 6: Final answer
x = 84,747.68
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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.