Finding the Fourth Proportional to 157,122.94, 216,829.26 and 85,502.94
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Solution
The fourth proportional to 157,122.94, 216,829.26 and 85,502.94 is: 117,993.84
Step by Step Solution
- Step 1: Write the proportion equation
157,122.94 : 216,829.26 = 85,502.94 : x - Step 2: Convert to fraction form
157,122.94/216,829.26 = 85,502.94/x - Step 3: Cross multiply
157,122.94x = 216,829.26 × 85,502.94 - Step 4: Simplify right side
157,122.94x = 18,539,539,208.02 - Step 5: Solve for x
x = 18,539,539,208.02/157,122.94 - Step 6: Final answer
x = 117,993.84
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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.