Finding the Fourth Proportional to 108,137.55, 149,232.81 and 60,393.99
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Solution
The fourth proportional to 108,137.55, 149,232.81 and 60,393.99 is: 83,345.38
Step by Step Solution
- Step 1: Write the proportion equation
108,137.55 : 149,232.81 = 60,393.99 : x - Step 2: Convert to fraction form
108,137.55/149,232.81 = 60,393.99/x - Step 3: Cross multiply
108,137.55x = 149,232.81 × 60,393.99 - Step 4: Simplify right side
108,137.55x = 9,012,764,834.81 - Step 5: Solve for x
x = 9,012,764,834.81/108,137.55 - Step 6: Final answer
x = 83,345.38
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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.