Finding the Fourth Proportional to 157,173.08, 216,485.65 and 120,804.98
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Solution
The fourth proportional to 157,173.08, 216,485.65 and 120,804.98 is: 166,393.28
Step by Step Solution
- Step 1: Write the proportion equation
157,173.08 : 216,485.65 = 120,804.98 : x - Step 2: Convert to fraction form
157,173.08/216,485.65 = 120,804.98/x - Step 3: Cross multiply
157,173.08x = 216,485.65 × 120,804.98 - Step 4: Simplify right side
157,173.08x = 26,152,544,045.92 - Step 5: Solve for x
x = 26,152,544,045.92/157,173.08 - Step 6: Final answer
x = 166,393.28
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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.