Finding the Fourth Proportional to 88,051.74, 121,420.06 and 75,346.97
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Solution
The fourth proportional to 88,051.74, 121,420.06 and 75,346.97 is: 103,900.66
Step by Step Solution
- Step 1: Write the proportion equation
88,051.74 : 121,420.06 = 75,346.97 : x - Step 2: Convert to fraction form
88,051.74/121,420.06 = 75,346.97/x - Step 3: Cross multiply
88,051.74x = 121,420.06 × 75,346.97 - Step 4: Simplify right side
88,051.74x = 9,148,633,618.22 - Step 5: Solve for x
x = 9,148,633,618.22/88,051.74 - Step 6: Final answer
x = 103,900.66
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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.