Finding the Fourth Proportional to 97,923.36, 135,003.36 and 77,846.88
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Solution
The fourth proportional to 97,923.36, 135,003.36 and 77,846.88 is: 107,324.65
Step by Step Solution
- Step 1: Write the proportion equation
97,923.36 : 135,003.36 = 77,846.88 : x - Step 2: Convert to fraction form
97,923.36/135,003.36 = 77,846.88/x - Step 3: Cross multiply
97,923.36x = 135,003.36 × 77,846.88 - Step 4: Simplify right side
97,923.36x = 10,509,590,365.52 - Step 5: Solve for x
x = 10,509,590,365.52/97,923.36 - Step 6: Final answer
x = 107,324.65
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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.