Finding the Fourth Proportional to 99,538.87, 148,957.47 and 62,116.55
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Solution
The fourth proportional to 99,538.87, 148,957.47 and 62,116.55 is: 92,955.89
Step by Step Solution
- Step 1: Write the proportion equation
99,538.87 : 148,957.47 = 62,116.55 : x - Step 2: Convert to fraction form
99,538.87/148,957.47 = 62,116.55/x - Step 3: Cross multiply
99,538.87x = 148,957.47 × 62,116.55 - Step 4: Simplify right side
99,538.87x = 9,252,724,133.13 - Step 5: Solve for x
x = 9,252,724,133.13/99,538.87 - Step 6: Final answer
x = 92,955.89
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1.5x scale
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.