Finding the Fourth Proportional to 115,655.13, 159,542.51 and 70,346.97
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Solution
The fourth proportional to 115,655.13, 159,542.51 and 70,346.97 is: 97,041.37
Step by Step Solution
- Step 1: Write the proportion equation
115,655.13 : 159,542.51 = 70,346.97 : x - Step 2: Convert to fraction form
115,655.13/159,542.51 = 70,346.97/x - Step 3: Cross multiply
115,655.13x = 159,542.51 × 70,346.97 - Step 4: Simplify right side
115,655.13x = 11,223,331,812.96 - Step 5: Solve for x
x = 11,223,331,812.96/115,655.13 - Step 6: Final answer
x = 97,041.37
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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.