Finding the Fourth Proportional to 157,778.21, 236,781.50 and 61,729.63
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Solution
The fourth proportional to 157,778.21, 236,781.50 and 61,729.63 is: 92,639.11
Step by Step Solution
- Step 1: Write the proportion equation
157,778.21 : 236,781.50 = 61,729.63 : x - Step 2: Convert to fraction form
157,778.21/236,781.50 = 61,729.63/x - Step 3: Cross multiply
157,778.21x = 236,781.50 × 61,729.63 - Step 4: Simplify right side
157,778.21x = 14,616,433,485.24 - Step 5: Solve for x
x = 14,616,433,485.24/157,778.21 - Step 6: Final answer
x = 92,639.11
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.