Finding the Fourth Proportional to 98,722.88, 136,237.19 and 53,400.99
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Solution
The fourth proportional to 98,722.88, 136,237.19 and 53,400.99 is: 73,693.16
Step by Step Solution
- Step 1: Write the proportion equation
98,722.88 : 136,237.19 = 53,400.99 : x - Step 2: Convert to fraction form
98,722.88/136,237.19 = 53,400.99/x - Step 3: Cross multiply
98,722.88x = 136,237.19 × 53,400.99 - Step 4: Simplify right side
98,722.88x = 7,275,200,553.81 - Step 5: Solve for x
x = 7,275,200,553.81/98,722.88 - Step 6: Final answer
x = 73,693.16
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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.