Finding the Fourth Proportional to 135,396.75, 186,677.93 and 86,913.15
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Solution
The fourth proportional to 135,396.75, 186,677.93 and 86,913.15 is: 119,831.28
Step by Step Solution
- Step 1: Write the proportion equation
135,396.75 : 186,677.93 = 86,913.15 : x - Step 2: Convert to fraction form
135,396.75/186,677.93 = 86,913.15/x - Step 3: Cross multiply
135,396.75x = 186,677.93 × 86,913.15 - Step 4: Simplify right side
135,396.75x = 16,224,766,449.02 - Step 5: Solve for x
x = 16,224,766,449.02/135,396.75 - Step 6: Final answer
x = 119,831.28
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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.