Finding the Fourth Proportional to 102,718.99, 154,113.51 and 55,338.94
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Solution
The fourth proportional to 102,718.99, 154,113.51 and 55,338.94 is: 83,027.28
Step by Step Solution
- Step 1: Write the proportion equation
102,718.99 : 154,113.51 = 55,338.94 : x - Step 2: Convert to fraction form
102,718.99/154,113.51 = 55,338.94/x - Step 3: Cross multiply
102,718.99x = 154,113.51 × 55,338.94 - Step 4: Simplify right side
102,718.99x = 8,528,478,683.24 - Step 5: Solve for x
x = 8,528,478,683.24/102,718.99 - Step 6: Final answer
x = 83,027.28
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.