Finding the Fourth Proportional to 108,471.30, 149,698.70 and 62,538.41
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Solution
The fourth proportional to 108,471.30, 149,698.70 and 62,538.41 is: 86,307.80
Step by Step Solution
- Step 1: Write the proportion equation
108,471.30 : 149,698.70 = 62,538.41 : x - Step 2: Convert to fraction form
108,471.30/149,698.70 = 62,538.41/x - Step 3: Cross multiply
108,471.30x = 149,698.70 × 62,538.41 - Step 4: Simplify right side
108,471.30x = 9,361,918,797.25 - Step 5: Solve for x
x = 9,361,918,797.25/108,471.30 - Step 6: Final answer
x = 86,307.80
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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.