Finding the Fourth Proportional to 105,994.18, 146,125.80 and 84,556.66
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Solution
The fourth proportional to 105,994.18, 146,125.80 and 84,556.66 is: 116,571.59
Step by Step Solution
- Step 1: Write the proportion equation
105,994.18 : 146,125.80 = 84,556.66 : x - Step 2: Convert to fraction form
105,994.18/146,125.80 = 84,556.66/x - Step 3: Cross multiply
105,994.18x = 146,125.80 × 84,556.66 - Step 4: Simplify right side
105,994.18x = 12,355,909,587.83 - Step 5: Solve for x
x = 12,355,909,587.83/105,994.18 - Step 6: Final answer
x = 116,571.59
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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.