Finding the Fourth Proportional to 106,365.05, 146,783.81 and 57,966.99
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Solution
The fourth proportional to 106,365.05, 146,783.81 and 57,966.99 is: 79,994.47
Step by Step Solution
- Step 1: Write the proportion equation
106,365.05 : 146,783.81 = 57,966.99 : x - Step 2: Convert to fraction form
106,365.05/146,783.81 = 57,966.99/x - Step 3: Cross multiply
106,365.05x = 146,783.81 × 57,966.99 - Step 4: Simplify right side
106,365.05x = 8,508,615,791.35 - Step 5: Solve for x
x = 8,508,615,791.35/106,365.05 - Step 6: Final answer
x = 79,994.47
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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.