Finding the Fourth Proportional to 115,873.24, 159,918.48 and 70,577.80
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Solution
The fourth proportional to 115,873.24, 159,918.48 and 70,577.80 is: 97,405.53
Step by Step Solution
- Step 1: Write the proportion equation
115,873.24 : 159,918.48 = 70,577.80 : x - Step 2: Convert to fraction form
115,873.24/159,918.48 = 70,577.80/x - Step 3: Cross multiply
115,873.24x = 159,918.48 × 70,577.80 - Step 4: Simplify right side
115,873.24x = 11,286,694,497.74 - Step 5: Solve for x
x = 11,286,694,497.74/115,873.24 - Step 6: Final answer
x = 97,405.53
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1.5x scale
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.