Finding the Fourth Proportional to 84,155.24, 115,993.32 and 73,920.08
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Solution
The fourth proportional to 84,155.24, 115,993.32 and 73,920.08 is: 101,885.94
Step by Step Solution
- Step 1: Write the proportion equation
84,155.24 : 115,993.32 = 73,920.08 : x - Step 2: Convert to fraction form
84,155.24/115,993.32 = 73,920.08/x - Step 3: Cross multiply
84,155.24x = 115,993.32 × 73,920.08 - Step 4: Simplify right side
84,155.24x = 8,574,235,493.87 - Step 5: Solve for x
x = 8,574,235,493.87/84,155.24 - Step 6: Final answer
x = 101,885.94
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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.