Finding the Fourth Proportional to 122,923.44, 169,430.40 and 87,067.44
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Solution
The fourth proportional to 122,923.44, 169,430.40 and 87,067.44 is: 120,008.61
Step by Step Solution
- Step 1: Write the proportion equation
122,923.44 : 169,430.40 = 87,067.44 : x - Step 2: Convert to fraction form
122,923.44/169,430.40 = 87,067.44/x - Step 3: Cross multiply
122,923.44x = 169,430.40 × 87,067.44 - Step 4: Simplify right side
122,923.44x = 14,751,871,186.18 - Step 5: Solve for x
x = 14,751,871,186.18/122,923.44 - Step 6: Final answer
x = 120,008.61
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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.