Finding the Fourth Proportional to 115,655.44, 159,542.94 and 70,347.28
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Solution
The fourth proportional to 115,655.44, 159,542.94 and 70,347.28 is: 97,041.79
Step by Step Solution
- Step 1: Write the proportion equation
115,655.44 : 159,542.94 = 70,347.28 : x - Step 2: Convert to fraction form
115,655.44/159,542.94 = 70,347.28/x - Step 3: Cross multiply
115,655.44x = 159,542.94 × 70,347.28 - Step 4: Simplify right side
115,655.44x = 11,223,410,722.75 - Step 5: Solve for x
x = 11,223,410,722.75/115,655.44 - Step 6: Final answer
x = 97,041.79
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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.