Finding the Fourth Proportional to 120,058.58, 165,683.21 and 65,614.12
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Solution
The fourth proportional to 120,058.58, 165,683.21 and 65,614.12 is: 90,548.78
Step by Step Solution
- Step 1: Write the proportion equation
120,058.58 : 165,683.21 = 65,614.12 : x - Step 2: Convert to fraction form
120,058.58/165,683.21 = 65,614.12/x - Step 3: Cross multiply
120,058.58x = 165,683.21 × 65,614.12 - Step 4: Simplify right side
120,058.58x = 10,871,157,772.75 - Step 5: Solve for x
x = 10,871,157,772.75/120,058.58 - Step 6: Final answer
x = 90,548.78
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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.