Finding the Fourth Proportional to 139,656.54, 192,727.68 and 75,992.96
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Solution
The fourth proportional to 139,656.54, 192,727.68 and 75,992.96 is: 104,871.19
Step by Step Solution
- Step 1: Write the proportion equation
139,656.54 : 192,727.68 = 75,992.96 : x - Step 2: Convert to fraction form
139,656.54/192,727.68 = 75,992.96/x - Step 3: Cross multiply
139,656.54x = 192,727.68 × 75,992.96 - Step 4: Simplify right side
139,656.54x = 14,645,946,877.13 - Step 5: Solve for x
x = 14,645,946,877.13/139,656.54 - Step 6: Final answer
x = 104,871.19
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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.